From c5455ef0fbfc4203a4aa8ad185dfa43bdadc0b82 Mon Sep 17 00:00:00 2001 From: Leander Scherer Date: Sun, 8 Mar 2026 20:04:08 +0100 Subject: feat(deps): add raylib and raytmx dependencies --- include/hoxml.h | 1497 ++++++++++++++ include/raylib.h | 1708 ++++++++++++++++ include/raymath.h | 2941 +++++++++++++++++++++++++++ include/raytmx.h | 4815 ++++++++++++++++++++++++++++++++++++++++++++ include/rlgl.h | 5262 ++++++++++++++++++++++++++++++++++++++++++++++++ lib/libraylib.a | Bin 0 -> 2798172 bytes lib/libraylib.so | 1 + lib/libraylib.so.5.5.0 | Bin 0 -> 2032336 bytes lib/libraylib.so.550 | 1 + 9 files changed, 16225 insertions(+) create mode 100644 include/hoxml.h create mode 100644 include/raylib.h create mode 100644 include/raymath.h create mode 100644 include/raytmx.h create mode 100644 include/rlgl.h create mode 100644 lib/libraylib.a create mode 120000 lib/libraylib.so create mode 100755 lib/libraylib.so.5.5.0 create mode 120000 lib/libraylib.so.550 diff --git a/include/hoxml.h b/include/hoxml.h new file mode 100644 index 0000000..d7addec --- /dev/null +++ b/include/hoxml.h @@ -0,0 +1,1497 @@ +/* +Copyright (c) 2024-2025 Luke Philipsen + +Permission to use, copy, modify, and/or distribute this software for +any purpose with or without fee is hereby granted. + +THE SOFTWARE IS PROVIDED “AS IS” AND THE AUTHOR DISCLAIMS ALL +WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES +OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE +FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY +DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN +AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT +OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. +*/ + +/* Usage + + Do this: + #define HOXML_IMPLEMENTATION + before you include this file in *one* C or C++ file to create the implementation. + + You can define HOXML_DECL with + #define HOXML_DECL static + or + #define HOXML_DECL extern + to specify hoxml function declarations as static or extern, respectively. + The default specifier is extern. +*/ + +#ifndef HOXML_H + #define HOXML_H + +#include /* strtoul() */ +#include /* memcpy(), memset(), NULL, size_t */ + +#ifndef HOXML_DECL + #define HOXML_DECL +#endif /* HOXML_DECL */ + +#ifdef __cplusplus + extern "C" { +#endif /* __cpluspus */ + +/***************/ +/* Definitions */ + +/** + * Error and token codes returned after parsing. + */ +typedef enum { + HOXML_ERROR_INVALID_INPUT = -9, /**< One or more parameter passed to hoxml was unacceptable. */ + HOXML_ERROR_INTERNAL = -8, /**< There's a bug in hoxml and parsing must halt. */ + HOXML_ERROR_INSUFFICIENT_MEMORY = -7, /**< Initialization or continued parsing require more memory. */ + HOXML_ERROR_UNEXPECTED_EOF = -6, /**< Reached the end of the XML content before the end of the document. */ + HOXML_ERROR_SYNTAX = -5, /**< Syntax error (e.g. "" followed by ""). */ + HOXML_ERROR_INVALID_DOCUMENT_TYPE_DECLARATION = -2, /**< declaration not before the root element. */ + HOXML_ERROR_INVALID_DOCUMENT_DECLARATION = -1, /**< declaration not before the root element. */ + HOXML_END_OF_DOCUMENT = 0, /**< The root element has been closed, parsing is done. */ + HOXML_ELEMENT_BEGIN, /**< A new element/tag began and its name is available. */ + HOXML_ELEMENT_END, /**< An element was closed, or , and its name and content are available. */ + HOXML_ATTRIBUTE, /**< An attribute's value, its name, and its element are available. */ + HOXML_PROCESSING_INSTRUCTION_BEGIN, /**< A processing instruction began and its target is available. */ + HOXML_PROCESSING_INSTRUCTION_END /**< A processing instruction ended and its content is available. */ +} hoxml_code_t; + +/** + * Holds context and state information needed by hoxml. Some of this information is public and holds the data parsed + * from XML content (element names, attribute names and values, etc.) but some is private and only makes sense to hoxml. + */ +typedef struct { + /* Public */ + char* tag; /**< Holds the name of the open or just-closed tag, or processing instruction target. */ + char* attribute; /**< Holds the current attribute's name. */ + char* value; /**< Holds the current attribute's value. */ + char* content; /**< Holds the current element's content. This means all character data found, including spaces. */ + int line; /**< The line currently being parsed. Lines are determined by line feeds and carriage returns. */ + int column; /**< The column, on the current line, of the character last parsed. */ + int depth; /**< The nested level of elements. Assigned with the level in which the element was found. */ + + /* Private (for internal use) */ + int is_initialized; /* Set to 1, or true, by hoxml_init() and indicates this context is safe to use */ + const char* xml; /* XML content to be parsed */ + size_t xml_length; /* Length of the XML content to parse */ + int encoding; /* Character encoding of the XML content */ + const char* iterator; /* Pointer to the character in the XML content being parsed */ + char* buffer; /* Memory allocated for hoxml to use */ + size_t buffer_length; /* Amount of memory allocated for hoxml */ + char* reference_start; /* Pointer to a location on the stack where a reference entity string (e.g "<") began */ + char* stack; /* Pointer to the current node in the stack-like structure of elements */ + int state; /* Current parsing state, determines which characters are acceptable and when to return */ + int post_state; /* When not "none" this indicates a post-state that has a cleanup step */ + int return_state; /* State to return to after the processing of a comment or reference has finished */ + int error_return_state; /* State to return to after recovering from an error */ + unsigned long stream; /* Holds the current character, whole or partial. May contain bytes from different strings. */ + size_t stream_length; /* Length of the 'stream' variable in bytes */ + unsigned newline_character; /* The character used to increment the 'line' variable, \r or \n */ +} hoxml_context_t; + +/** + * Sets up the hoxml context object to begin parsing. Following this, call hoxml_parse() until + * HOXML_END_OF_DOCUMENT or one of the error values is returned. + * + * @param context Pointer to an allocated hoxml context object. This instance will be modified. + * @param buffer A pointer to some contiguous block of memory for hoxml to use. This will also be modified, frequently. + * @param buffer_length The length, in bytes, of the buffer handed to hoxml as the 'buffer' parameter. + */ +HOXML_DECL void hoxml_init(hoxml_context_t* context, void* buffer, size_t buffer_length); + +/** + * Instruct hoxml to use a new buffer. This maintains the current state of parsing meaning that the next call to + * hoxml_parse() will continue none the wiser. + * The buffer must have a length greater than the current buffer and both buffers must be allocated at the time this + * function is called. Once it returns, the original buffer may and should be freed. + * + * @param context An initialized hoxml context object. + * @param buffer A pointer to a new, contiguous block of memory for hoxml to use. + * @param buffer_length The length, in bytes, of the buffer handed to hoxml as the 'buffer' parameter. + */ +HOXML_DECL void hoxml_realloc(hoxml_context_t* context, void* buffer, size_t buffer_length); + +/** + * Begin or continue parsing the given XML content string. + * The XML content string does not need to contain the content in its entirety. If hoxml finds a null terminator or + * parses up to the indicated length of the content, HOXML_ERROR_UNEXPECTED_EOF is returned and parsing will cease. + * However, this error is recoverable and parsing will continue if the next call to hoxml_parse() passes a new XML + * content string, using the same pointer or not. + * + * @param context An initialized hoxml context object. This should be treated as read-only until parsing is done. + * @param xml XML content as an encoded string. Supported character encodings include ASCII, UTF-8, and UTF-16(BE|LE). + * @param xml_length Length of the XML content in bytes. + * @return A code indicating what information from the XML content is available or an error. + */ +HOXML_DECL hoxml_code_t hoxml_parse(hoxml_context_t* context, const char* xml, size_t xml_length); + +#ifdef __cplusplus + } +#endif /* __cplusplus */ + +#ifdef HOXML_IMPLEMENTATION + +/******************/ +/* Implementation */ + +enum { + /* Current parser states */ + HOXML_STATE_ERROR_INTERNAL = -8, + HOXML_STATE_ERROR_INSUFFICIENT_MEMORY = -7, + HOXML_STATE_ERROR_UNEXPECTED_EOF = -6, + HOXML_STATE_ERROR_SYNTAX = -5, + HOXML_STATE_ERROR_ENCODING = -4, + HOXML_STATE_ERROR_TAG_MISMATCH = -3, + HOXML_STATE_ERROR_INVALID_DOCUMENT_TYPE_DECLARATION = -2, + HOXML_STATE_ERROR_INVALID_DOCUMENT_DECLARATION = -1, + HOXML_STATE_NONE = 0, + HOXML_STATE_UTF8_BOM1, + HOXML_STATE_UTF8_BOM2, + HOXML_STATE_UTF16BE_BOM, + HOXML_STATE_UTF16LE_BOM, + HOXML_STATE_TAG_BEGIN, + HOXML_STATE_TAG_END, + HOXML_STATE_ELEMENT_NAME1, + HOXML_STATE_ELEMENT_NAME2, + HOXML_STATE_ATTRIBUTE_NAME1, + HOXML_STATE_ATTRIBUTE_NAME2, + HOXML_STATE_ATTRIBUTE_ASSIGNMENT, + HOXML_STATE_ATTRIBUTE_VALUE, + HOXML_STATE_OPEN_TAG, + HOXML_STATE_COMMENT_CDATA_OR_DTD_BEGIN, + HOXML_STATE_COMMENT_BEGIN, + HOXML_STATE_COMMENT, + HOXML_STATE_COMMENT_END1, + HOXML_STATE_COMMENT_END2, + HOXML_STATE_CDATA_BEGIN1, + HOXML_STATE_CDATA_BEGIN2, + HOXML_STATE_CDATA_BEGIN3, + HOXML_STATE_CDATA_BEGIN4, + HOXML_STATE_CDATA_BEGIN5, + HOXML_STATE_CDATA_BEGIN6, + HOXML_STATE_CDATA_CONTENT, + HOXML_STATE_CDATA_END1, + HOXML_STATE_CDATA_END2, + HOXML_STATE_REFERENCE_BEGIN, + HOXML_STATE_REFERENCE_ENTITY, + HOXML_STATE_REFERENCE_NUMERIC, + HOXML_STATE_REFERENCE_HEX, + HOXML_STATE_PROCESSING_INSTRUCTION_BEGIN, + HOXML_STATE_PROCESSING_INSTRUCTION_TARGET1, + HOXML_STATE_PROCESSING_INSTRUCTION_TARGET2, + HOXML_STATE_PROCESSING_INSTRUCTION_CONTENT, + HOXML_STATE_PROCESSING_INSTRUCTION_END, + HOXML_STATE_DTD_BEGIN1, + HOXML_STATE_DTD_BEGIN2, + HOXML_STATE_DTD_BEGIN3, + HOXML_STATE_DTD_BEGIN4, + HOXML_STATE_DTD_BEGIN5, + HOXML_STATE_DTD_BEGIN6, + HOXML_STATE_DTD_BEGIN7, + HOXML_STATE_DTD_BEGIN8, + HOXML_STATE_DTD_NAME, + HOXML_STATE_DTD_CONTENT, + HOXML_STATE_DTD_OPEN_BRACKET, + HOXML_STATE_DONE, + /* Post (i.e. after) parser states indicating actions to take on the next call to hoxml_parse() */ + HOXML_POST_STATE_TAG_END, + HOXML_POST_STATE_ATTRIBUTE_END, +}; + +enum { + HOXML_FLAG_END_TAG = 1, /* The node is a dedicated end tag (not an empty element) */ + HOXML_FLAG_EMPTY_ELEMENT = 2, /* The node is an empty element */ + HOXML_FLAG_PROCESSING_INSTRUCTION = 4, /* The node is a processing instruction */ + HOXML_FLAG_DOUBLE_QUOTE = 8, /* The value string being parsed was opened with a double quote (") */ + HOXML_FLAG_TERMINATED = 16, /* The node's current string (tag, attribute, etc.) is null terminated */ + HOXML_FLAG_BEGUN = 32, /* The "element begun" code was already returned for this node */ + HOXML_FLAG_INCREMENT_DEPTH = 64, /* Context object's depth value should increase by one next hoxml_parse() */ + HOXML_FLAG_DECREMENT_DEPTH = 128 /* Context object's depth value should decrease by one next hoxml_parse() */ +}; + +enum { + HOXML_ENC_UNKNOWN = 0, /* The character encoding is unknown. UTF-8 is assumed. */ + HOXML_ENC_UTF_8, /* Variable-length encoding (8, 16, 24, or 32 bits) compatible with ASCII */ + HOXML_ENC_UTF_16_LE, /* Variable-length encoding (16 or 32 bits), little-endian variant */ + HOXML_ENC_UTF_16_BE /* Variable-lenght encoding (16 or 32 bits), big-endian variant */ +}; + +enum { + HOXML_CASE_SENSITIVE = 0, /* Cases must match. 'A' == 'a' -> false. */ + HOXML_CASE_INSENSITIVE /* Cases need not match. 'A' == 'a' -> true. */ +}; + +enum { + HOXML_REF_TYPE_ENTITY = 0, /* Predefined strings representing known, problematic characters (e.g. '<') */ + HOXML_REF_TYPE_NUMERIC, /* A value of a character given as a decimal number */ + HOXML_REF_TYPE_HEX /* A value of a character given as a hexadecimal number */ +}; + +struct _hoxml_node_t; +typedef struct _hoxml_node_t { + struct _hoxml_node_t* parent; /* Points to the parent node, or NULL if this is the root */ + char* end; /* Points to the last byte of this node's data */ + int flags; /* May contain any number of the flags defined in hoxml_node_flags */ + char tag; /* Where the tag string will be stored in the buffer, must be defined last */ +} hoxml_node_t; + +typedef struct { + unsigned encoded; /* Character as it appeared in the content. In other words, the original, encoded character. */ + unsigned codepoint; /* Unicode codepoint of the character. In other words, the decoded character. */ + size_t bytes; /* Number of eight-bit bytes of the encoded character, in the [1, 4] range */ +} hoxml_character_t; + +#ifndef UINT32_MAX /* Defined in stdint.h with later revisions of C and C++ but not for some earlier ones */ + #define UINT32_MAX (0xffffffff) +#endif +#define HOXML_STACK ((hoxml_node_t*)context->stack) +#define HOXML_TO_LOWER(c) (c >= 'A' && c <= 'Z' ? c + 32 : c) +#define HOXML_IS_NEW_LINE(c) (c == 0x0A || c == 0x0D) +#define HOXML_IS_WHITESPACE(c) (c == 0x20 || c == 0x09 || HOXML_IS_NEW_LINE(c)) +#define HOXML_IS_ASCII_CHAR(c) (c >= 0x21 && c <= 0x7F) +#define HOXML_IS_CHAR_DATA(c) (c != '<' && c != '&') +#define HOXML_IS_ALPHA(c) ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')) +#define HOXML_IS_NUMERIC(c) (c >= '0' && c <= '9') +#define HOXML_IS_NAME_START_CHAR(c) (HOXML_IS_ALPHA(c) || c == ':' || c == '_' || (c >= 0xC0 && c <= 0xD6) || \ + (c >= 0xD8 && c <= 0xF6) || c >= 0xF8) +#define HOXML_IS_NAME_CHAR(c) (HOXML_IS_NAME_START_CHAR(c) || c == '-' || c == '.'|| HOXML_IS_NUMERIC(c)) +#define HOXML_IS_HEX_CHAR(c) (HOXML_IS_NUMERIC(c) || (c >= 'a' && c <= 'f') || (c >= 'A' && c <= 'F')) +#define HOXML_IS_VALUE_CHAR_DATA(f, c) (HOXML_IS_CHAR_DATA(c) && ((f & HOXML_FLAG_DOUBLE_QUOTE && c != '"') || \ + c != '\'')) + +void hoxml_push_stack(hoxml_context_t* context); +void hoxml_pop_stack(hoxml_context_t* context); +void hoxml_append_character(hoxml_context_t* context, hoxml_character_t c); +void hoxml_append_terminator(hoxml_context_t* context); +void hoxml_end_reference(hoxml_context_t* context, int type); +void hoxml_begin_tag(hoxml_context_t* context); +hoxml_code_t hoxml_end_tag(hoxml_context_t* context); +int hoxml_post_state_cleanup(hoxml_context_t* context); +hoxml_character_t hoxml_decode_character(const char* str, size_t str_length, int encoding); +hoxml_character_t hoxml_encode_character(unsigned codepoint, int encoding); +char* hoxml_to_ascii(const char* str, int encoding); +size_t hoxml_strlen(const char* str, int encoding); +int hoxml_strcmp(const char* str1, int encoding1, const char* str2, int encoding2, int sensitivity); +const char* hoxml_strstr(const char* haystack, int haystack_encoding, const char* needle, int needle_encoding, + int sensitivity); +#ifdef HOXML_DEBUG + #include /* printf() */ + #define HOXML_LOG_STATE(s) printf("%s\n", s); +#else + #define HOXML_LOG_STATE(s) +#endif + +HOXML_DECL void hoxml_init(hoxml_context_t* context, void* buffer, size_t buffer_length) { + if (context == NULL || buffer == NULL || buffer_length <= 0) + return; + + memset(context, 0, sizeof(hoxml_context_t)); /* Assign all values of the context to zero */ + context->buffer = (char*)buffer; /* Use the provided buffer */ + context->buffer_length = buffer_length; /* Remember the length of the provided buffer */ + context->line = 1; /* This is meant to be human-readable and humans begin counting at one */ + context->is_initialized = 1; + memset(buffer, 0, buffer_length); /* Fill the buffer with zeroes */ +} + +HOXML_DECL void hoxml_realloc(hoxml_context_t* context, void* buffer, size_t buffer_length) { + if (context == NULL || context->is_initialized == 0 || buffer == NULL || buffer_length <= context->buffer_length) + return; + + /* Reassign the end and parent pointers of each node, beginning at the tail and iterate to the head */ + hoxml_node_t* node = HOXML_STACK; + while (node != NULL) { + hoxml_node_t* parent = node->parent; + node->end = (char*)buffer + (node->end - context->buffer); + if (node->parent != NULL) + node->parent = (hoxml_node_t*)((char*)buffer + ((char*)node->parent - context->buffer)); + node = parent; + } + + /* Use offsets from the original buffer pointer to reassign pointers such that they now point to the new buffer */ + if (context->tag != NULL) + context->tag = (char*)buffer + (context->tag - context->buffer); + if (context->attribute != NULL) + context->attribute = (char*)buffer + (context->attribute - context->buffer); + if (context->value != NULL) + context->value = (char*)buffer + (context->value - context->buffer); + if (context->content != NULL) + context->content = (char*)buffer + (context->content - context->buffer); + if (context->reference_start != NULL) + context->reference_start = (char*)buffer + (context->reference_start - context->buffer); + if (context->stack != NULL) + context->stack = (char*)buffer + (context->stack - context->buffer); + + memset(buffer, 0, buffer_length); /* Fill the new buffer with zeroes */ + memcpy(buffer, context->buffer, context->buffer_length); /* Copy the entire, current buffer to the new buffer */ + context->buffer = (char*)buffer; + context->buffer_length = buffer_length; + + if (context->state == HOXML_STATE_ERROR_INSUFFICIENT_MEMORY) { + context->state = context->error_return_state; + context->error_return_state = HOXML_STATE_NONE; + } +} + +HOXML_DECL hoxml_code_t hoxml_parse(hoxml_context_t* context, const char* xml, const size_t xml_length) { + if (context == NULL || context->is_initialized == 0 || xml == NULL || xml_length == 0) + return HOXML_ERROR_INVALID_INPUT; + + if (HOXML_STACK != NULL) { + if (HOXML_STACK->flags & HOXML_FLAG_INCREMENT_DEPTH) { /* If an element began, increasing nesting */ + context->depth += 1; + HOXML_STACK->flags &= ~HOXML_FLAG_INCREMENT_DEPTH; /* Clear the flag */ + } + + if (HOXML_STACK->flags & HOXML_FLAG_DECREMENT_DEPTH) { /* If an element ended, decreasing nesting */ + context->depth -= 1; + HOXML_STACK->flags &= ~HOXML_FLAG_DECREMENT_DEPTH; /* Clear the flag */ + } + } + + switch (context->state) { + /* Two errors are recoverable: HOXML_ERROR_INSUFFICIENT_MEMORY and HOXML_ERROR_UNEXPECTED_EOF. The former can */ + /* be recovered by assigning a new buffer with hoxml_realloc(). The latter can be recovered by passing a new */ + /* XML content string to hoxml_parse() so we'll check for one before concluding we're still in error. */ + case HOXML_STATE_ERROR_UNEXPECTED_EOF: { + /* Try to decode a character, or remainder of a character, at the beginning of this hopefully-new string */ + unsigned long stream = context->stream; + /* Calculate the number of bytes to copy into the 'stream' variable from the hopefully-new string. We */ + /* want 4 bytes, or whatever is available. */ + size_t bytes_to_copy = 4; + if (bytes_to_copy > xml_length) + bytes_to_copy = xml_length; + if (context->stream_length > 0) { + /* Adjust the number of bytes to copy to account for possible bytes from a previous string */ + bytes_to_copy -= context->stream_length; + /* Append the new bytes to the previous one(s) */ + memcpy((char*)&stream + context->stream_length, xml, bytes_to_copy); + } + else { + /* Copy to the 'stream' under the assumption that all of it can be overwritten */ + memcpy(&stream, xml, bytes_to_copy); + } + hoxml_character_t c = hoxml_decode_character((const char*)&stream, xml_length, context->encoding); + /* If the character is the equivalent of a null terminator or there was not enough data */ + if (c.codepoint == 0 || c.codepoint == UINT32_MAX) + return HOXML_ERROR_UNEXPECTED_EOF; + context->state = context->error_return_state; + context->error_return_state = HOXML_STATE_NONE; + /* Note: there is a check for a change in the input pointer a little further down */ + } break; + case HOXML_STATE_DONE: return HOXML_END_OF_DOCUMENT; + case HOXML_STATE_ERROR_INTERNAL: return HOXML_ERROR_INTERNAL; + case HOXML_STATE_ERROR_INSUFFICIENT_MEMORY: return HOXML_ERROR_INSUFFICIENT_MEMORY; + case HOXML_STATE_ERROR_SYNTAX: return HOXML_ERROR_SYNTAX; + case HOXML_STATE_ERROR_ENCODING: return HOXML_ERROR_ENCODING; + case HOXML_STATE_ERROR_TAG_MISMATCH: return HOXML_ERROR_TAG_MISMATCH; + case HOXML_STATE_ERROR_INVALID_DOCUMENT_DECLARATION: return HOXML_ERROR_INVALID_DOCUMENT_DECLARATION; + } + + /* A handful of cases leave the context in an intermediary state. This allows the caller to have access to things */ + /* like the tag's name, an attribute's value, etc. but that old data may now need to be cleaned up. */ + if (hoxml_post_state_cleanup(context)) /* If the cleanup process found the document ended */ + return HOXML_END_OF_DOCUMENT; + + /* If the pointer to the XML content string has changed */ + if (context->xml != xml) { + /* A few variables are now invalid: the pointer to the content, its length, and the iterator */ + context->xml = xml; + context->xml_length = xml_length; + context->iterator = xml; + } + + /* Remember some context variables in case we hit an unexpected EoF and need to undo an iteration */ + const char* previous_iterator = context->iterator; + size_t previous_stream_length = context->stream_length; + while (context->state >= HOXML_STATE_NONE && context->state <= HOXML_STATE_DONE) { + /* About half of the parsing states assume the stack is non-null. */ + /* If parsing is currently in one of those states and the stack (head) pointer is null. */ + if (((context->state >= HOXML_STATE_TAG_BEGIN && context->state <= HOXML_STATE_OPEN_TAG) || + (context->state >= HOXML_STATE_REFERENCE_BEGIN && context->state <= HOXML_STATE_REFERENCE_HEX)) && + context->stack == NULL) { + /* Some unforseen bug has led us to a state in which continuing would cause an illegal memory access. */ + /* Parsing must halt. There is no way to recover. */ + context->state = HOXML_STATE_ERROR_INTERNAL; + return HOXML_ERROR_INTERNAL; + } + + /* Calculate the number of bytes remaining in the current XML content string */ + size_t bytes_remaining = (size_t)(context->xml_length - (context->iterator - context->xml)); + /* Calculate the number of bytes to copy into the 'stream' variable. We want 4 bytes, or whatever is left. */ + size_t bytes_to_copy = 4; + if (bytes_to_copy > bytes_remaining) + bytes_to_copy = bytes_remaining; + if (context->stream_length > 0) { + /* Adjust the number of bytes to copy to account for possible bytes from a previous XML content string. */ + /* This will be non-zero in the rare case where content is being given in parts. */ + bytes_to_copy -= context->stream_length; + /* Append the new bytes to the previous one(s) */ + memcpy((char*)&(context->stream) + context->stream_length, context->iterator, bytes_to_copy); + } + else { + /* Copy to the 'stream' under the assumption that all of it can be overwritten */ + memcpy(&(context->stream), context->iterator, bytes_to_copy); + } + hoxml_character_t c = hoxml_decode_character((const char*)&(context->stream), bytes_remaining, + context->encoding); + + /* If the character is the equivalent of a null terminator or there was not enough data to decode the value */ + if (c.codepoint == 0 || c.codepoint == UINT32_MAX) { + context->stream_length = bytes_to_copy; + context->error_return_state = context->state; + context->state = HOXML_STATE_ERROR_UNEXPECTED_EOF; + return HOXML_ERROR_UNEXPECTED_EOF; + } else if (HOXML_IS_NEW_LINE(c.codepoint)) { + if (context->newline_character == 0) /* If this is the first newline */ + context->newline_character = c.codepoint; /* Remember this as the character to use for increments */ + if (c.codepoint == context->newline_character) /* Avoid incrementing twice for files with \r\n endings */ + context->line++; + context->column = 0; + } else + context->column++; + + /* Iterate up to four bytes into the XML content string. The idea is to jump forward by the number of bytes */ + /* that were just decoded as a single character. The number of bytes varies from one to four bytes depending */ + /* on the character encoding and character's codepoint. We also need to consider the case in which some of */ + /* this character's bytes were carried over from a previous XML content string. Those bytes would have been */ + /* stashed in the context's 'stream' variable where 'stream_length' tells us the number of said bytes. */ + previous_iterator = context->iterator; + previous_stream_length = context->stream_length; + context->iterator += c.bytes - context->stream_length; + context->stream_length = 0; + + #ifdef HOXML_DEBUG + char debugCodepoint = HOXML_IS_NEW_LINE(c.codepoint) ? ' ' : c.codepoint; + printf(" %c [%08X] [L%02dC%02d] -> ", debugCodepoint, c.codepoint, context->line, context->column); + #endif + + switch(context->state) { + case HOXML_STATE_NONE: /* The first state immediately following initialization, or a document declaration */ + HOXML_LOG_STATE("HOXML_STATE_NONE") + if (c.codepoint == '<') + hoxml_begin_tag(context); + else if (c.encoded == 0xEF) { /* UTF-8 Byte Order Marker (BOM) is [EF] BB BF, as hex bytes */ + context->state = HOXML_STATE_UTF8_BOM1; + context->column--; /* Don't count this as a column */ + } else if (c.encoded == 0xFE) { /* UTF-16BE BOM is [FE] FF, as hex bytes */ + context->state = HOXML_STATE_UTF16BE_BOM; + context->column--; /* Don't count this as a column */ + } else if (c.encoded == 0xFF) { /* UTF-16LE BOM is [FF] FE, as hex bytes */ + context->state = HOXML_STATE_UTF16LE_BOM; + context->column--; /* Don't count this as a column */ + } else if (!HOXML_IS_WHITESPACE(c.codepoint)) + context->state = HOXML_STATE_ERROR_SYNTAX; + break; + case HOXML_STATE_UTF8_BOM1: /* The first byte of a UTF-8 byte order marker was found */ + HOXML_LOG_STATE("HOXML_STATE_UTF8_BOM1") + context->column--; /* Don't count this as a column */ + if (c.encoded == 0xBB) /* UTF-8 BOM is EF [BB] BF, as hex bytes */ + context->state = HOXML_STATE_UTF8_BOM2; + else + context->state = HOXML_STATE_ERROR_SYNTAX; + break; + case HOXML_STATE_UTF8_BOM2: /* The second byte of a UTF-8 byte order marker was found */ + HOXML_LOG_STATE("HOXML_STATE_UTF8_BOM2") + context->column--; /* Don't count this as a column */ + if (c.encoded == 0xBF) { /* UTF-8 BOM is EF BB [BF], as hex bytes */ + context->state = HOXML_STATE_NONE; + context->encoding = HOXML_ENC_UTF_8; + } else + context->state = HOXML_STATE_ERROR_SYNTAX; + break; + case HOXML_STATE_UTF16BE_BOM: /* The first byte of a UTF-16BE byte order marker was found */ + HOXML_LOG_STATE("HOXML_STATE_UTF16BE_BOM") + context->column--; /* Don't count this as a column */ + if (c.encoded == 0xFF) { /* UTF-16BE BOM is FE [FF], as hex bytes */ + context->state = HOXML_STATE_NONE; + context->encoding = HOXML_ENC_UTF_16_BE; + } else + context->state = HOXML_STATE_ERROR_SYNTAX; + break; + case HOXML_STATE_UTF16LE_BOM: /* The first byte of a UTF-16LE byte order marker was found */ + HOXML_LOG_STATE("HOXML_STATE_UTF16LE_BOM") + context->column--; /* Don't count this as a column */ + if (c.encoded == 0xFE) { /* UTF-16LE BOM is FF [FE], as hex bytes */ + context->state = HOXML_STATE_NONE; + context->encoding = HOXML_ENC_UTF_16_LE; + } else + context->state = HOXML_STATE_ERROR_SYNTAX; + break; + case HOXML_STATE_TAG_BEGIN: /* A new tag was started (a '<' was found) and a new node has been pushed */ + HOXML_LOG_STATE("HOXML_STATE_TAG_BEGIN") + if (c.codepoint == '?') { /* "state = HOXML_STATE_PROCESSING_INSTRUCTION_BEGIN; + HOXML_STACK->flags |= HOXML_FLAG_PROCESSING_INSTRUCTION; /* Apply the PI flag to this node */ + } else if (c.codepoint == '/') /* "flags |= HOXML_FLAG_END_TAG; /* Apply the end tag flag to this node */ + else if (c.codepoint == '!') /* " No need to re-update GPU arrays (use a change detector flag?) + if (RLGL.State.vertexCounter > 0) + { + // Activate elements VAO + if (RLGL.ExtSupported.vao) glBindVertexArray(batch->vertexBuffer[batch->currentBuffer].vaoId); + + // Vertex positions buffer + glBindBuffer(GL_ARRAY_BUFFER, batch->vertexBuffer[batch->currentBuffer].vboId[0]); + glBufferSubData(GL_ARRAY_BUFFER, 0, RLGL.State.vertexCounter*3*sizeof(float), batch->vertexBuffer[batch->currentBuffer].vertices); + //glBufferData(GL_ARRAY_BUFFER, sizeof(float)*3*4*batch->vertexBuffer[batch->currentBuffer].elementCount, batch->vertexBuffer[batch->currentBuffer].vertices, GL_DYNAMIC_DRAW); // Update all buffer + + // Texture coordinates buffer + glBindBuffer(GL_ARRAY_BUFFER, batch->vertexBuffer[batch->currentBuffer].vboId[1]); + glBufferSubData(GL_ARRAY_BUFFER, 0, RLGL.State.vertexCounter*2*sizeof(float), batch->vertexBuffer[batch->currentBuffer].texcoords); + //glBufferData(GL_ARRAY_BUFFER, sizeof(float)*2*4*batch->vertexBuffer[batch->currentBuffer].elementCount, batch->vertexBuffer[batch->currentBuffer].texcoords, GL_DYNAMIC_DRAW); // Update all buffer + + // Normals buffer + glBindBuffer(GL_ARRAY_BUFFER, batch->vertexBuffer[batch->currentBuffer].vboId[2]); + glBufferSubData(GL_ARRAY_BUFFER, 0, RLGL.State.vertexCounter*3*sizeof(float), batch->vertexBuffer[batch->currentBuffer].normals); + //glBufferData(GL_ARRAY_BUFFER, sizeof(float)*3*4*batch->vertexBuffer[batch->currentBuffer].elementCount, batch->vertexBuffer[batch->currentBuffer].normals, GL_DYNAMIC_DRAW); // Update all buffer + + // Colors buffer + glBindBuffer(GL_ARRAY_BUFFER, batch->vertexBuffer[batch->currentBuffer].vboId[3]); + glBufferSubData(GL_ARRAY_BUFFER, 0, RLGL.State.vertexCounter*4*sizeof(unsigned char), batch->vertexBuffer[batch->currentBuffer].colors); + //glBufferData(GL_ARRAY_BUFFER, sizeof(float)*4*4*batch->vertexBuffer[batch->currentBuffer].elementCount, batch->vertexBuffer[batch->currentBuffer].colors, GL_DYNAMIC_DRAW); // Update all buffer + + // NOTE: glMapBuffer() causes sync issue + // If GPU is working with this buffer, glMapBuffer() will wait(stall) until GPU to finish its job + // To avoid waiting (idle), you can call first glBufferData() with NULL pointer before glMapBuffer() + // If you do that, the previous data in PBO will be discarded and glMapBuffer() returns a new + // allocated pointer immediately even if GPU is still working with the previous data + + // Another option: map the buffer object into client's memory + // Probably this code could be moved somewhere else... + // batch->vertexBuffer[batch->currentBuffer].vertices = (float *)glMapBuffer(GL_ARRAY_BUFFER, GL_READ_WRITE); + // if (batch->vertexBuffer[batch->currentBuffer].vertices) + // { + // Update vertex data + // } + // glUnmapBuffer(GL_ARRAY_BUFFER); + + // Unbind the current VAO + if (RLGL.ExtSupported.vao) glBindVertexArray(0); + } + //------------------------------------------------------------------------------------------------------------ + + // Draw batch vertex buffers (considering VR stereo if required) + //------------------------------------------------------------------------------------------------------------ + Matrix matProjection = RLGL.State.projection; + Matrix matModelView = RLGL.State.modelview; + + int eyeCount = 1; + if (RLGL.State.stereoRender) eyeCount = 2; + + for (int eye = 0; eye < eyeCount; eye++) + { + if (eyeCount == 2) + { + // Setup current eye viewport (half screen width) + rlViewport(eye*RLGL.State.framebufferWidth/2, 0, RLGL.State.framebufferWidth/2, RLGL.State.framebufferHeight); + + // Set current eye view offset to modelview matrix + rlSetMatrixModelview(rlMatrixMultiply(matModelView, RLGL.State.viewOffsetStereo[eye])); + // Set current eye projection matrix + rlSetMatrixProjection(RLGL.State.projectionStereo[eye]); + } + + // Draw buffers + if (RLGL.State.vertexCounter > 0) + { + // Set current shader and upload current MVP matrix + glUseProgram(RLGL.State.currentShaderId); + + // Create modelview-projection matrix and upload to shader + Matrix matMVP = rlMatrixMultiply(RLGL.State.modelview, RLGL.State.projection); + glUniformMatrix4fv(RLGL.State.currentShaderLocs[RL_SHADER_LOC_MATRIX_MVP], 1, false, rlMatrixToFloat(matMVP)); + + if (RLGL.State.currentShaderLocs[RL_SHADER_LOC_MATRIX_PROJECTION] != -1) + { + glUniformMatrix4fv(RLGL.State.currentShaderLocs[RL_SHADER_LOC_MATRIX_PROJECTION], 1, false, rlMatrixToFloat(RLGL.State.projection)); + } + + // WARNING: For the following setup of the view, model, and normal matrices, it is expected that + // transformations and rendering occur between rlPushMatrix() and rlPopMatrix() + + if (RLGL.State.currentShaderLocs[RL_SHADER_LOC_MATRIX_VIEW] != -1) + { + glUniformMatrix4fv(RLGL.State.currentShaderLocs[RL_SHADER_LOC_MATRIX_VIEW], 1, false, rlMatrixToFloat(RLGL.State.modelview)); + } + + if (RLGL.State.currentShaderLocs[RL_SHADER_LOC_MATRIX_MODEL] != -1) + { + glUniformMatrix4fv(RLGL.State.currentShaderLocs[RL_SHADER_LOC_MATRIX_MODEL], 1, false, rlMatrixToFloat(RLGL.State.transform)); + } + + if (RLGL.State.currentShaderLocs[RL_SHADER_LOC_MATRIX_NORMAL] != -1) + { + glUniformMatrix4fv(RLGL.State.currentShaderLocs[RL_SHADER_LOC_MATRIX_NORMAL], 1, false, rlMatrixToFloat(rlMatrixTranspose(rlMatrixInvert(RLGL.State.transform)))); + } + + if (RLGL.ExtSupported.vao) glBindVertexArray(batch->vertexBuffer[batch->currentBuffer].vaoId); + else + { + // Bind vertex attrib: position (shader-location = 0) + glBindBuffer(GL_ARRAY_BUFFER, batch->vertexBuffer[batch->currentBuffer].vboId[0]); + glVertexAttribPointer(RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_POSITION], 3, GL_FLOAT, 0, 0, 0); + glEnableVertexAttribArray(RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_POSITION]); + + // Bind vertex attrib: texcoord (shader-location = 1) + glBindBuffer(GL_ARRAY_BUFFER, batch->vertexBuffer[batch->currentBuffer].vboId[1]); + glVertexAttribPointer(RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_TEXCOORD01], 2, GL_FLOAT, 0, 0, 0); + glEnableVertexAttribArray(RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_TEXCOORD01]); + + // Bind vertex attrib: normal (shader-location = 2) + glBindBuffer(GL_ARRAY_BUFFER, batch->vertexBuffer[batch->currentBuffer].vboId[2]); + glVertexAttribPointer(RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_NORMAL], 3, GL_FLOAT, 0, 0, 0); + glEnableVertexAttribArray(RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_NORMAL]); + + // Bind vertex attrib: color (shader-location = 3) + glBindBuffer(GL_ARRAY_BUFFER, batch->vertexBuffer[batch->currentBuffer].vboId[3]); + glVertexAttribPointer(RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_COLOR], 4, GL_UNSIGNED_BYTE, GL_TRUE, 0, 0); + glEnableVertexAttribArray(RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_COLOR]); + + glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, batch->vertexBuffer[batch->currentBuffer].vboId[4]); + } + + // Setup some default shader values + glUniform4f(RLGL.State.currentShaderLocs[RL_SHADER_LOC_COLOR_DIFFUSE], 1.0f, 1.0f, 1.0f, 1.0f); + glUniform1i(RLGL.State.currentShaderLocs[RL_SHADER_LOC_MAP_DIFFUSE], 0); // Active default sampler2D: texture0 + + // Activate additional sampler textures + // Those additional textures will be common for all draw calls of the batch + for (int i = 0; i < RL_DEFAULT_BATCH_MAX_TEXTURE_UNITS; i++) + { + if (RLGL.State.activeTextureId[i] > 0) + { + glActiveTexture(GL_TEXTURE0 + 1 + i); + glBindTexture(GL_TEXTURE_2D, RLGL.State.activeTextureId[i]); + } + } + + // Activate default sampler2D texture0 (one texture is always active for default batch shader) + // NOTE: Batch system accumulates calls by texture0 changes, additional textures are enabled for all the draw calls + glActiveTexture(GL_TEXTURE0); + + for (int i = 0, vertexOffset = 0; i < batch->drawCounter; i++) + { + // Bind current draw call texture, activated as GL_TEXTURE0 and Bound to sampler2D texture0 by default + glBindTexture(GL_TEXTURE_2D, batch->draws[i].textureId); + + if ((batch->draws[i].mode == RL_LINES) || (batch->draws[i].mode == RL_TRIANGLES)) glDrawArrays(batch->draws[i].mode, vertexOffset, batch->draws[i].vertexCount); + else + { + #if defined(GRAPHICS_API_OPENGL_33) + // We need to define the number of indices to be processed: elementCount*6 + // NOTE: The final parameter tells the GPU the offset in bytes from the + // start of the index buffer to the location of the first index to process + glDrawElements(GL_TRIANGLES, batch->draws[i].vertexCount/4*6, GL_UNSIGNED_INT, (GLvoid *)(vertexOffset/4*6*sizeof(GLuint))); + #endif + #if defined(GRAPHICS_API_OPENGL_ES2) + glDrawElements(GL_TRIANGLES, batch->draws[i].vertexCount/4*6, GL_UNSIGNED_SHORT, (GLvoid *)(vertexOffset/4*6*sizeof(GLushort))); + #endif + } + + vertexOffset += (batch->draws[i].vertexCount + batch->draws[i].vertexAlignment); + } + + if (!RLGL.ExtSupported.vao) + { + glBindBuffer(GL_ARRAY_BUFFER, 0); + glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); + } + + glBindTexture(GL_TEXTURE_2D, 0); // Unbind textures + } + + if (RLGL.ExtSupported.vao) glBindVertexArray(0); // Unbind VAO + + glUseProgram(0); // Unbind shader program + } + + // Restore viewport to default measures + if (eyeCount == 2) rlViewport(0, 0, RLGL.State.framebufferWidth, RLGL.State.framebufferHeight); + //------------------------------------------------------------------------------------------------------------ + + // Reset batch buffers + //------------------------------------------------------------------------------------------------------------ + // Reset vertex counter for next frame + RLGL.State.vertexCounter = 0; + + // Reset depth for next draw + batch->currentDepth = -1.0f; + + // Restore projection/modelview matrices + RLGL.State.projection = matProjection; + RLGL.State.modelview = matModelView; + + // Reset RLGL.currentBatch->draws array + for (int i = 0; i < RL_DEFAULT_BATCH_DRAWCALLS; i++) + { + batch->draws[i].mode = RL_QUADS; + batch->draws[i].vertexCount = 0; + batch->draws[i].textureId = RLGL.State.defaultTextureId; + } + + // Reset active texture units for next batch + for (int i = 0; i < RL_DEFAULT_BATCH_MAX_TEXTURE_UNITS; i++) RLGL.State.activeTextureId[i] = 0; + + // Reset draws counter to one draw for the batch + batch->drawCounter = 1; + //------------------------------------------------------------------------------------------------------------ + + // Change to next buffer in the list (in case of multi-buffering) + batch->currentBuffer++; + if (batch->currentBuffer >= batch->bufferCount) batch->currentBuffer = 0; +#endif +} + +// Set the active render batch for rlgl +void rlSetRenderBatchActive(rlRenderBatch *batch) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + rlDrawRenderBatch(RLGL.currentBatch); + + if (batch != NULL) RLGL.currentBatch = batch; + else RLGL.currentBatch = &RLGL.defaultBatch; +#endif +} + +// Update and draw internal render batch +void rlDrawRenderBatchActive(void) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + rlDrawRenderBatch(RLGL.currentBatch); // NOTE: Stereo rendering is checked inside +#endif +} + +// Check internal buffer overflow for a given number of vertex +// and force a rlRenderBatch draw call if required +bool rlCheckRenderBatchLimit(int vCount) +{ + bool overflow = false; + +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + if ((RLGL.State.vertexCounter + vCount) >= + (RLGL.currentBatch->vertexBuffer[RLGL.currentBatch->currentBuffer].elementCount*4)) + { + overflow = true; + + // Store current primitive drawing mode and texture id + int currentMode = RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].mode; + int currentTexture = RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].textureId; + + rlDrawRenderBatch(RLGL.currentBatch); // NOTE: Stereo rendering is checked inside + + // Restore state of last batch so we can continue adding vertices + RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].mode = currentMode; + RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].textureId = currentTexture; + } +#endif + + return overflow; +} + +// Textures data management +//----------------------------------------------------------------------------------------- +// Convert image data to OpenGL texture (returns OpenGL valid Id) +unsigned int rlLoadTexture(const void *data, int width, int height, int format, int mipmapCount) +{ + unsigned int id = 0; + + glBindTexture(GL_TEXTURE_2D, 0); // Free any old binding + + // Check texture format support by OpenGL 1.1 (compressed textures not supported) +#if defined(GRAPHICS_API_OPENGL_11) + if (format >= RL_PIXELFORMAT_COMPRESSED_DXT1_RGB) + { + TRACELOG(RL_LOG_WARNING, "GL: OpenGL 1.1 does not support GPU compressed texture formats"); + return id; + } +#else + if ((!RLGL.ExtSupported.texCompDXT) && ((format == RL_PIXELFORMAT_COMPRESSED_DXT1_RGB) || (format == RL_PIXELFORMAT_COMPRESSED_DXT1_RGBA) || + (format == RL_PIXELFORMAT_COMPRESSED_DXT3_RGBA) || (format == RL_PIXELFORMAT_COMPRESSED_DXT5_RGBA))) + { + TRACELOG(RL_LOG_WARNING, "GL: DXT compressed texture format not supported"); + return id; + } +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + if ((!RLGL.ExtSupported.texCompETC1) && (format == RL_PIXELFORMAT_COMPRESSED_ETC1_RGB)) + { + TRACELOG(RL_LOG_WARNING, "GL: ETC1 compressed texture format not supported"); + return id; + } + + if ((!RLGL.ExtSupported.texCompETC2) && ((format == RL_PIXELFORMAT_COMPRESSED_ETC2_RGB) || (format == RL_PIXELFORMAT_COMPRESSED_ETC2_EAC_RGBA))) + { + TRACELOG(RL_LOG_WARNING, "GL: ETC2 compressed texture format not supported"); + return id; + } + + if ((!RLGL.ExtSupported.texCompPVRT) && ((format == RL_PIXELFORMAT_COMPRESSED_PVRT_RGB) || (format == RL_PIXELFORMAT_COMPRESSED_PVRT_RGBA))) + { + TRACELOG(RL_LOG_WARNING, "GL: PVRT compressed texture format not supported"); + return id; + } + + if ((!RLGL.ExtSupported.texCompASTC) && ((format == RL_PIXELFORMAT_COMPRESSED_ASTC_4x4_RGBA) || (format == RL_PIXELFORMAT_COMPRESSED_ASTC_8x8_RGBA))) + { + TRACELOG(RL_LOG_WARNING, "GL: ASTC compressed texture format not supported"); + return id; + } +#endif +#endif // GRAPHICS_API_OPENGL_11 + + glPixelStorei(GL_UNPACK_ALIGNMENT, 1); + + glGenTextures(1, &id); // Generate texture id + + glBindTexture(GL_TEXTURE_2D, id); + + int mipWidth = width; + int mipHeight = height; + int mipOffset = 0; // Mipmap data offset, only used for tracelog + + // NOTE: Added pointer math separately from function to avoid UBSAN complaining + unsigned char *dataPtr = NULL; + if (data != NULL) dataPtr = (unsigned char *)data; + + // Load the different mipmap levels + for (int i = 0; i < mipmapCount; i++) + { + unsigned int mipSize = rlGetPixelDataSize(mipWidth, mipHeight, format); + + unsigned int glInternalFormat, glFormat, glType; + rlGetGlTextureFormats(format, &glInternalFormat, &glFormat, &glType); + + TRACELOGD("TEXTURE: Load mipmap level %i (%i x %i), size: %i, offset: %i", i, mipWidth, mipHeight, mipSize, mipOffset); + + if (glInternalFormat != 0) + { + if (format < RL_PIXELFORMAT_COMPRESSED_DXT1_RGB) glTexImage2D(GL_TEXTURE_2D, i, glInternalFormat, mipWidth, mipHeight, 0, glFormat, glType, dataPtr); +#if !defined(GRAPHICS_API_OPENGL_11) + else glCompressedTexImage2D(GL_TEXTURE_2D, i, glInternalFormat, mipWidth, mipHeight, 0, mipSize, dataPtr); +#endif + +#if defined(GRAPHICS_API_OPENGL_33) + if (format == RL_PIXELFORMAT_UNCOMPRESSED_GRAYSCALE) + { + GLint swizzleMask[] = { GL_RED, GL_RED, GL_RED, GL_ONE }; + glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_RGBA, swizzleMask); + } + else if (format == RL_PIXELFORMAT_UNCOMPRESSED_GRAY_ALPHA) + { +#if defined(GRAPHICS_API_OPENGL_21) + GLint swizzleMask[] = { GL_RED, GL_RED, GL_RED, GL_ALPHA }; +#elif defined(GRAPHICS_API_OPENGL_33) + GLint swizzleMask[] = { GL_RED, GL_RED, GL_RED, GL_GREEN }; +#endif + glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_RGBA, swizzleMask); + } +#endif + } + + mipWidth /= 2; + mipHeight /= 2; + mipOffset += mipSize; // Increment offset position to next mipmap + if (data != NULL) dataPtr += mipSize; // Increment data pointer to next mipmap + + // Security check for NPOT textures + if (mipWidth < 1) mipWidth = 1; + if (mipHeight < 1) mipHeight = 1; + } + + // Texture parameters configuration + // NOTE: glTexParameteri does NOT affect texture uploading, just the way it's used +#if defined(GRAPHICS_API_OPENGL_ES2) + // NOTE: OpenGL ES 2.0 with no GL_OES_texture_npot support (i.e. WebGL) has limited NPOT support, so CLAMP_TO_EDGE must be used + if (RLGL.ExtSupported.texNPOT) + { + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); // Set texture to repeat on x-axis + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); // Set texture to repeat on y-axis + } + else + { + // NOTE: If using negative texture coordinates (LoadOBJ()), it does not work! + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); // Set texture to clamp on x-axis + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); // Set texture to clamp on y-axis + } +#else + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); // Set texture to repeat on x-axis + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); // Set texture to repeat on y-axis +#endif + + // Magnification and minification filters + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); // Alternative: GL_LINEAR + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); // Alternative: GL_LINEAR + +#if defined(GRAPHICS_API_OPENGL_33) + if (mipmapCount > 1) + { + // Activate Trilinear filtering if mipmaps are available + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR); + } +#endif + + // At this point we have the texture loaded in GPU and texture parameters configured + + // NOTE: If mipmaps were not in data, they are not generated automatically + + // Unbind current texture + glBindTexture(GL_TEXTURE_2D, 0); + + if (id > 0) TRACELOG(RL_LOG_INFO, "TEXTURE: [ID %i] Texture loaded successfully (%ix%i | %s | %i mipmaps)", id, width, height, rlGetPixelFormatName(format), mipmapCount); + else TRACELOG(RL_LOG_WARNING, "TEXTURE: Failed to load texture"); + + return id; +} + +// Load depth texture/renderbuffer (to be attached to fbo) +// WARNING: OpenGL ES 2.0 requires GL_OES_depth_texture and WebGL requires WEBGL_depth_texture extensions +unsigned int rlLoadTextureDepth(int width, int height, bool useRenderBuffer) +{ + unsigned int id = 0; + +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + // In case depth textures not supported, we force renderbuffer usage + if (!RLGL.ExtSupported.texDepth) useRenderBuffer = true; + + // NOTE: We let the implementation to choose the best bit-depth + // Possible formats: GL_DEPTH_COMPONENT16, GL_DEPTH_COMPONENT24, GL_DEPTH_COMPONENT32 and GL_DEPTH_COMPONENT32F + unsigned int glInternalFormat = GL_DEPTH_COMPONENT; + +#if (defined(GRAPHICS_API_OPENGL_ES2) || defined(GRAPHICS_API_OPENGL_ES3)) + // WARNING: WebGL platform requires unsized internal format definition (GL_DEPTH_COMPONENT) + // while other platforms using OpenGL ES 2.0 require/support sized internal formats depending on the GPU capabilities + if (!RLGL.ExtSupported.texDepthWebGL || useRenderBuffer) + { + if (RLGL.ExtSupported.maxDepthBits == 32) glInternalFormat = GL_DEPTH_COMPONENT32_OES; + else if (RLGL.ExtSupported.maxDepthBits == 24) glInternalFormat = GL_DEPTH_COMPONENT24_OES; + else glInternalFormat = GL_DEPTH_COMPONENT16; + } +#endif + + if (!useRenderBuffer && RLGL.ExtSupported.texDepth) + { + glGenTextures(1, &id); + glBindTexture(GL_TEXTURE_2D, id); + glTexImage2D(GL_TEXTURE_2D, 0, glInternalFormat, width, height, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, NULL); + + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); + + glBindTexture(GL_TEXTURE_2D, 0); + + TRACELOG(RL_LOG_INFO, "TEXTURE: Depth texture loaded successfully"); + } + else + { + // Create the renderbuffer that will serve as the depth attachment for the framebuffer + // NOTE: A renderbuffer is simpler than a texture and could offer better performance on embedded devices + glGenRenderbuffers(1, &id); + glBindRenderbuffer(GL_RENDERBUFFER, id); + glRenderbufferStorage(GL_RENDERBUFFER, glInternalFormat, width, height); + + glBindRenderbuffer(GL_RENDERBUFFER, 0); + + TRACELOG(RL_LOG_INFO, "TEXTURE: [ID %i] Depth renderbuffer loaded successfully (%i bits)", id, (RLGL.ExtSupported.maxDepthBits >= 24)? RLGL.ExtSupported.maxDepthBits : 16); + } +#endif + + return id; +} + +// Load texture cubemap +// NOTE: Cubemap data is expected to be 6 images in a single data array (one after the other), +// expected the following convention: +X, -X, +Y, -Y, +Z, -Z +unsigned int rlLoadTextureCubemap(const void *data, int size, int format, int mipmapCount) +{ + unsigned int id = 0; + +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + int mipSize = size; + + // NOTE: Added pointer math separately from function to avoid UBSAN complaining + unsigned char *dataPtr = NULL; + if (data != NULL) dataPtr = (unsigned char *)data; + + unsigned int dataSize = rlGetPixelDataSize(size, size, format); + + glGenTextures(1, &id); + glBindTexture(GL_TEXTURE_CUBE_MAP, id); + + unsigned int glInternalFormat, glFormat, glType; + rlGetGlTextureFormats(format, &glInternalFormat, &glFormat, &glType); + + if (glInternalFormat != 0) + { + // Load cubemap faces/mipmaps + for (int i = 0; i < 6*mipmapCount; i++) + { + int mipmapLevel = i/6; + int face = i%6; + + if (data == NULL) + { + if (format < RL_PIXELFORMAT_COMPRESSED_DXT1_RGB) + { + if ((format == RL_PIXELFORMAT_UNCOMPRESSED_R32) || + (format == RL_PIXELFORMAT_UNCOMPRESSED_R32G32B32A32) || + (format == RL_PIXELFORMAT_UNCOMPRESSED_R16) || + (format == RL_PIXELFORMAT_UNCOMPRESSED_R16G16B16A16)) TRACELOG(RL_LOG_WARNING, "TEXTURES: Cubemap requested format not supported"); + else glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + face, mipmapLevel, glInternalFormat, mipSize, mipSize, 0, glFormat, glType, NULL); + } + else TRACELOG(RL_LOG_WARNING, "TEXTURES: Empty cubemap creation does not support compressed format"); + } + else + { + if (format < RL_PIXELFORMAT_COMPRESSED_DXT1_RGB) glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + face, mipmapLevel, glInternalFormat, mipSize, mipSize, 0, glFormat, glType, (unsigned char *)dataPtr + face*dataSize); + else glCompressedTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + face, mipmapLevel, glInternalFormat, mipSize, mipSize, 0, dataSize, (unsigned char *)dataPtr + face*dataSize); + } + +#if defined(GRAPHICS_API_OPENGL_33) + if (format == RL_PIXELFORMAT_UNCOMPRESSED_GRAYSCALE) + { + GLint swizzleMask[] = { GL_RED, GL_RED, GL_RED, GL_ONE }; + glTexParameteriv(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_SWIZZLE_RGBA, swizzleMask); + } + else if (format == RL_PIXELFORMAT_UNCOMPRESSED_GRAY_ALPHA) + { +#if defined(GRAPHICS_API_OPENGL_21) + GLint swizzleMask[] = { GL_RED, GL_RED, GL_RED, GL_ALPHA }; +#elif defined(GRAPHICS_API_OPENGL_33) + GLint swizzleMask[] = { GL_RED, GL_RED, GL_RED, GL_GREEN }; +#endif + glTexParameteriv(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_SWIZZLE_RGBA, swizzleMask); + } +#endif + if (face == 5) + { + mipSize /= 2; + if (data != NULL) dataPtr += dataSize*6; // Increment data pointer to next mipmap + + // Security check for NPOT textures + if (mipSize < 1) mipSize = 1; + + dataSize = rlGetPixelDataSize(mipSize, mipSize, format); + } + } + } + + // Set cubemap texture sampling parameters + if (mipmapCount > 1) glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR); + else glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MIN_FILTER, GL_LINEAR); + + glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); + glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); +#if defined(GRAPHICS_API_OPENGL_33) + glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE); // Flag not supported on OpenGL ES 2.0 +#endif + + glBindTexture(GL_TEXTURE_CUBE_MAP, 0); +#endif + + if (id > 0) TRACELOG(RL_LOG_INFO, "TEXTURE: [ID %i] Cubemap texture loaded successfully (%ix%i)", id, size, size); + else TRACELOG(RL_LOG_WARNING, "TEXTURE: Failed to load cubemap texture"); + + return id; +} + +// Update already loaded texture in GPU with new data +// NOTE: We don't know safely if internal texture format is the expected one... +void rlUpdateTexture(unsigned int id, int offsetX, int offsetY, int width, int height, int format, const void *data) +{ + glBindTexture(GL_TEXTURE_2D, id); + + unsigned int glInternalFormat, glFormat, glType; + rlGetGlTextureFormats(format, &glInternalFormat, &glFormat, &glType); + + if ((glInternalFormat != 0) && (format < RL_PIXELFORMAT_COMPRESSED_DXT1_RGB)) + { + glTexSubImage2D(GL_TEXTURE_2D, 0, offsetX, offsetY, width, height, glFormat, glType, data); + } + else TRACELOG(RL_LOG_WARNING, "TEXTURE: [ID %i] Failed to update for current texture format (%i)", id, format); +} + +// Get OpenGL internal formats and data type from raylib PixelFormat +void rlGetGlTextureFormats(int format, unsigned int *glInternalFormat, unsigned int *glFormat, unsigned int *glType) +{ + *glInternalFormat = 0; + *glFormat = 0; + *glType = 0; + + switch (format) + { + #if defined(GRAPHICS_API_OPENGL_11) || defined(GRAPHICS_API_OPENGL_21) || defined(GRAPHICS_API_OPENGL_ES2) + // NOTE: on OpenGL ES 2.0 (WebGL), internalFormat must match format and options allowed are: GL_LUMINANCE, GL_RGB, GL_RGBA + case RL_PIXELFORMAT_UNCOMPRESSED_GRAYSCALE: *glInternalFormat = GL_LUMINANCE; *glFormat = GL_LUMINANCE; *glType = GL_UNSIGNED_BYTE; break; + case RL_PIXELFORMAT_UNCOMPRESSED_GRAY_ALPHA: *glInternalFormat = GL_LUMINANCE_ALPHA; *glFormat = GL_LUMINANCE_ALPHA; *glType = GL_UNSIGNED_BYTE; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R5G6B5: *glInternalFormat = GL_RGB; *glFormat = GL_RGB; *glType = GL_UNSIGNED_SHORT_5_6_5; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R8G8B8: *glInternalFormat = GL_RGB; *glFormat = GL_RGB; *glType = GL_UNSIGNED_BYTE; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R5G5B5A1: *glInternalFormat = GL_RGBA; *glFormat = GL_RGBA; *glType = GL_UNSIGNED_SHORT_5_5_5_1; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R4G4B4A4: *glInternalFormat = GL_RGBA; *glFormat = GL_RGBA; *glType = GL_UNSIGNED_SHORT_4_4_4_4; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R8G8B8A8: *glInternalFormat = GL_RGBA; *glFormat = GL_RGBA; *glType = GL_UNSIGNED_BYTE; break; + #if !defined(GRAPHICS_API_OPENGL_11) + #if defined(GRAPHICS_API_OPENGL_ES3) + case RL_PIXELFORMAT_UNCOMPRESSED_R32: if (RLGL.ExtSupported.texFloat32) *glInternalFormat = GL_R32F_EXT; *glFormat = GL_RED_EXT; *glType = GL_FLOAT; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R32G32B32: if (RLGL.ExtSupported.texFloat32) *glInternalFormat = GL_RGB32F_EXT; *glFormat = GL_RGB; *glType = GL_FLOAT; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R32G32B32A32: if (RLGL.ExtSupported.texFloat32) *glInternalFormat = GL_RGBA32F_EXT; *glFormat = GL_RGBA; *glType = GL_FLOAT; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R16: if (RLGL.ExtSupported.texFloat16) *glInternalFormat = GL_R16F_EXT; *glFormat = GL_RED_EXT; *glType = GL_HALF_FLOAT; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R16G16B16: if (RLGL.ExtSupported.texFloat16) *glInternalFormat = GL_RGB16F_EXT; *glFormat = GL_RGB; *glType = GL_HALF_FLOAT; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R16G16B16A16: if (RLGL.ExtSupported.texFloat16) *glInternalFormat = GL_RGBA16F_EXT; *glFormat = GL_RGBA; *glType = GL_HALF_FLOAT; break; + #else + case RL_PIXELFORMAT_UNCOMPRESSED_R32: if (RLGL.ExtSupported.texFloat32) *glInternalFormat = GL_LUMINANCE; *glFormat = GL_LUMINANCE; *glType = GL_FLOAT; break; // NOTE: Requires extension OES_texture_float + case RL_PIXELFORMAT_UNCOMPRESSED_R32G32B32: if (RLGL.ExtSupported.texFloat32) *glInternalFormat = GL_RGB; *glFormat = GL_RGB; *glType = GL_FLOAT; break; // NOTE: Requires extension OES_texture_float + case RL_PIXELFORMAT_UNCOMPRESSED_R32G32B32A32: if (RLGL.ExtSupported.texFloat32) *glInternalFormat = GL_RGBA; *glFormat = GL_RGBA; *glType = GL_FLOAT; break; // NOTE: Requires extension OES_texture_float + #if defined(GRAPHICS_API_OPENGL_21) + case RL_PIXELFORMAT_UNCOMPRESSED_R16: if (RLGL.ExtSupported.texFloat16) *glInternalFormat = GL_LUMINANCE; *glFormat = GL_LUMINANCE; *glType = GL_HALF_FLOAT_ARB; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R16G16B16: if (RLGL.ExtSupported.texFloat16) *glInternalFormat = GL_RGB; *glFormat = GL_RGB; *glType = GL_HALF_FLOAT_ARB; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R16G16B16A16: if (RLGL.ExtSupported.texFloat16) *glInternalFormat = GL_RGBA; *glFormat = GL_RGBA; *glType = GL_HALF_FLOAT_ARB; break; + #else // defined(GRAPHICS_API_OPENGL_ES2) + case RL_PIXELFORMAT_UNCOMPRESSED_R16: if (RLGL.ExtSupported.texFloat16) *glInternalFormat = GL_LUMINANCE; *glFormat = GL_LUMINANCE; *glType = GL_HALF_FLOAT_OES; break; // NOTE: Requires extension OES_texture_half_float + case RL_PIXELFORMAT_UNCOMPRESSED_R16G16B16: if (RLGL.ExtSupported.texFloat16) *glInternalFormat = GL_RGB; *glFormat = GL_RGB; *glType = GL_HALF_FLOAT_OES; break; // NOTE: Requires extension OES_texture_half_float + case RL_PIXELFORMAT_UNCOMPRESSED_R16G16B16A16: if (RLGL.ExtSupported.texFloat16) *glInternalFormat = GL_RGBA; *glFormat = GL_RGBA; *glType = GL_HALF_FLOAT_OES; break; // NOTE: Requires extension OES_texture_half_float + #endif + #endif + #endif + #elif defined(GRAPHICS_API_OPENGL_33) + case RL_PIXELFORMAT_UNCOMPRESSED_GRAYSCALE: *glInternalFormat = GL_R8; *glFormat = GL_RED; *glType = GL_UNSIGNED_BYTE; break; + case RL_PIXELFORMAT_UNCOMPRESSED_GRAY_ALPHA: *glInternalFormat = GL_RG8; *glFormat = GL_RG; *glType = GL_UNSIGNED_BYTE; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R5G6B5: *glInternalFormat = GL_RGB565; *glFormat = GL_RGB; *glType = GL_UNSIGNED_SHORT_5_6_5; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R8G8B8: *glInternalFormat = GL_RGB8; *glFormat = GL_RGB; *glType = GL_UNSIGNED_BYTE; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R5G5B5A1: *glInternalFormat = GL_RGB5_A1; *glFormat = GL_RGBA; *glType = GL_UNSIGNED_SHORT_5_5_5_1; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R4G4B4A4: *glInternalFormat = GL_RGBA4; *glFormat = GL_RGBA; *glType = GL_UNSIGNED_SHORT_4_4_4_4; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R8G8B8A8: *glInternalFormat = GL_RGBA8; *glFormat = GL_RGBA; *glType = GL_UNSIGNED_BYTE; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R32: if (RLGL.ExtSupported.texFloat32) *glInternalFormat = GL_R32F; *glFormat = GL_RED; *glType = GL_FLOAT; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R32G32B32: if (RLGL.ExtSupported.texFloat32) *glInternalFormat = GL_RGB32F; *glFormat = GL_RGB; *glType = GL_FLOAT; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R32G32B32A32: if (RLGL.ExtSupported.texFloat32) *glInternalFormat = GL_RGBA32F; *glFormat = GL_RGBA; *glType = GL_FLOAT; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R16: if (RLGL.ExtSupported.texFloat16) *glInternalFormat = GL_R16F; *glFormat = GL_RED; *glType = GL_HALF_FLOAT; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R16G16B16: if (RLGL.ExtSupported.texFloat16) *glInternalFormat = GL_RGB16F; *glFormat = GL_RGB; *glType = GL_HALF_FLOAT; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R16G16B16A16: if (RLGL.ExtSupported.texFloat16) *glInternalFormat = GL_RGBA16F; *glFormat = GL_RGBA; *glType = GL_HALF_FLOAT; break; + #endif + #if !defined(GRAPHICS_API_OPENGL_11) + case RL_PIXELFORMAT_COMPRESSED_DXT1_RGB: if (RLGL.ExtSupported.texCompDXT) *glInternalFormat = GL_COMPRESSED_RGB_S3TC_DXT1_EXT; break; + case RL_PIXELFORMAT_COMPRESSED_DXT1_RGBA: if (RLGL.ExtSupported.texCompDXT) *glInternalFormat = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT; break; + case RL_PIXELFORMAT_COMPRESSED_DXT3_RGBA: if (RLGL.ExtSupported.texCompDXT) *glInternalFormat = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT; break; + case RL_PIXELFORMAT_COMPRESSED_DXT5_RGBA: if (RLGL.ExtSupported.texCompDXT) *glInternalFormat = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT; break; + case RL_PIXELFORMAT_COMPRESSED_ETC1_RGB: if (RLGL.ExtSupported.texCompETC1) *glInternalFormat = GL_ETC1_RGB8_OES; break; // NOTE: Requires OpenGL ES 2.0 or OpenGL 4.3 + case RL_PIXELFORMAT_COMPRESSED_ETC2_RGB: if (RLGL.ExtSupported.texCompETC2) *glInternalFormat = GL_COMPRESSED_RGB8_ETC2; break; // NOTE: Requires OpenGL ES 3.0 or OpenGL 4.3 + case RL_PIXELFORMAT_COMPRESSED_ETC2_EAC_RGBA: if (RLGL.ExtSupported.texCompETC2) *glInternalFormat = GL_COMPRESSED_RGBA8_ETC2_EAC; break; // NOTE: Requires OpenGL ES 3.0 or OpenGL 4.3 + case RL_PIXELFORMAT_COMPRESSED_PVRT_RGB: if (RLGL.ExtSupported.texCompPVRT) *glInternalFormat = GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG; break; // NOTE: Requires PowerVR GPU + case RL_PIXELFORMAT_COMPRESSED_PVRT_RGBA: if (RLGL.ExtSupported.texCompPVRT) *glInternalFormat = GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG; break; // NOTE: Requires PowerVR GPU + case RL_PIXELFORMAT_COMPRESSED_ASTC_4x4_RGBA: if (RLGL.ExtSupported.texCompASTC) *glInternalFormat = GL_COMPRESSED_RGBA_ASTC_4x4_KHR; break; // NOTE: Requires OpenGL ES 3.1 or OpenGL 4.3 + case RL_PIXELFORMAT_COMPRESSED_ASTC_8x8_RGBA: if (RLGL.ExtSupported.texCompASTC) *glInternalFormat = GL_COMPRESSED_RGBA_ASTC_8x8_KHR; break; // NOTE: Requires OpenGL ES 3.1 or OpenGL 4.3 + #endif + default: TRACELOG(RL_LOG_WARNING, "TEXTURE: Current format not supported (%i)", format); break; + } +} + +// Unload texture from GPU memory +void rlUnloadTexture(unsigned int id) +{ + glDeleteTextures(1, &id); +} + +// Generate mipmap data for selected texture +// NOTE: Only supports GPU mipmap generation +void rlGenTextureMipmaps(unsigned int id, int width, int height, int format, int *mipmaps) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glBindTexture(GL_TEXTURE_2D, id); + + // Check if texture is power-of-two (POT) + bool texIsPOT = false; + + if (((width > 0) && ((width & (width - 1)) == 0)) && + ((height > 0) && ((height & (height - 1)) == 0))) texIsPOT = true; + + if ((texIsPOT) || (RLGL.ExtSupported.texNPOT)) + { + //glHint(GL_GENERATE_MIPMAP_HINT, GL_DONT_CARE); // Hint for mipmaps generation algorithm: GL_FASTEST, GL_NICEST, GL_DONT_CARE + glGenerateMipmap(GL_TEXTURE_2D); // Generate mipmaps automatically + + #define MIN(a,b) (((a)<(b))? (a):(b)) + #define MAX(a,b) (((a)>(b))? (a):(b)) + + *mipmaps = 1 + (int)floor(log(MAX(width, height))/log(2)); + TRACELOG(RL_LOG_INFO, "TEXTURE: [ID %i] Mipmaps generated automatically, total: %i", id, *mipmaps); + } + else TRACELOG(RL_LOG_WARNING, "TEXTURE: [ID %i] Failed to generate mipmaps", id); + + glBindTexture(GL_TEXTURE_2D, 0); +#else + TRACELOG(RL_LOG_WARNING, "TEXTURE: [ID %i] GPU mipmap generation not supported", id); +#endif +} + +// Read texture pixel data +void *rlReadTexturePixels(unsigned int id, int width, int height, int format) +{ + void *pixels = NULL; + +#if defined(GRAPHICS_API_OPENGL_11) || defined(GRAPHICS_API_OPENGL_33) + glBindTexture(GL_TEXTURE_2D, id); + + // NOTE: Using texture id, we can retrieve some texture info (but not on OpenGL ES 2.0) + // Possible texture info: GL_TEXTURE_RED_SIZE, GL_TEXTURE_GREEN_SIZE, GL_TEXTURE_BLUE_SIZE, GL_TEXTURE_ALPHA_SIZE + //int width, height, format; + //glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_WIDTH, &width); + //glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_HEIGHT, &height); + //glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_INTERNAL_FORMAT, &format); + + // NOTE: Each row written to or read from by OpenGL pixel operations like glGetTexImage are aligned to a 4 byte boundary by default, which may add some padding + // Use glPixelStorei to modify padding with the GL_[UN]PACK_ALIGNMENT setting + // GL_PACK_ALIGNMENT affects operations that read from OpenGL memory (glReadPixels, glGetTexImage, etc.) + // GL_UNPACK_ALIGNMENT affects operations that write to OpenGL memory (glTexImage, etc.) + glPixelStorei(GL_PACK_ALIGNMENT, 1); + + unsigned int glInternalFormat, glFormat, glType; + rlGetGlTextureFormats(format, &glInternalFormat, &glFormat, &glType); + unsigned int size = rlGetPixelDataSize(width, height, format); + + if ((glInternalFormat != 0) && (format < RL_PIXELFORMAT_COMPRESSED_DXT1_RGB)) + { + pixels = RL_MALLOC(size); + glGetTexImage(GL_TEXTURE_2D, 0, glFormat, glType, pixels); + } + else TRACELOG(RL_LOG_WARNING, "TEXTURE: [ID %i] Data retrieval not suported for pixel format (%i)", id, format); + + glBindTexture(GL_TEXTURE_2D, 0); +#endif + +#if defined(GRAPHICS_API_OPENGL_ES2) + // glGetTexImage() is not available on OpenGL ES 2.0 + // Texture width and height are required on OpenGL ES 2.0, there is no way to get it from texture id + // Two possible Options: + // 1 - Bind texture to color fbo attachment and glReadPixels() + // 2 - Create an fbo, activate it, render quad with texture, glReadPixels() + // We are using Option 1, just need to care for texture format on retrieval + // NOTE: This behaviour could be conditioned by graphic driver... + unsigned int fboId = rlLoadFramebuffer(); + + glBindFramebuffer(GL_FRAMEBUFFER, fboId); + glBindTexture(GL_TEXTURE_2D, 0); + + // Attach our texture to FBO + glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, id, 0); + + // We read data as RGBA because FBO texture is configured as RGBA, despite binding another texture format + pixels = (unsigned char *)RL_MALLOC(rlGetPixelDataSize(width, height, RL_PIXELFORMAT_UNCOMPRESSED_R8G8B8A8)); + glReadPixels(0, 0, width, height, GL_RGBA, GL_UNSIGNED_BYTE, pixels); + + glBindFramebuffer(GL_FRAMEBUFFER, 0); + + // Clean up temporal fbo + rlUnloadFramebuffer(fboId); +#endif + + return pixels; +} + +// Read screen pixel data (color buffer) +unsigned char *rlReadScreenPixels(int width, int height) +{ + unsigned char *screenData = (unsigned char *)RL_CALLOC(width*height*4, sizeof(unsigned char)); + + // NOTE 1: glReadPixels returns image flipped vertically -> (0,0) is the bottom left corner of the framebuffer + // NOTE 2: We are getting alpha channel! Be careful, it can be transparent if not cleared properly! + glReadPixels(0, 0, width, height, GL_RGBA, GL_UNSIGNED_BYTE, screenData); + + // Flip image vertically! + unsigned char *imgData = (unsigned char *)RL_MALLOC(width*height*4*sizeof(unsigned char)); + + for (int y = height - 1; y >= 0; y--) + { + for (int x = 0; x < (width*4); x++) + { + imgData[((height - 1) - y)*width*4 + x] = screenData[(y*width*4) + x]; // Flip line + + // Set alpha component value to 255 (no trasparent image retrieval) + // NOTE: Alpha value has already been applied to RGB in framebuffer, we don't need it! + if (((x + 1)%4) == 0) imgData[((height - 1) - y)*width*4 + x] = 255; + } + } + + RL_FREE(screenData); + + return imgData; // NOTE: image data should be freed +} + +// Framebuffer management (fbo) +//----------------------------------------------------------------------------------------- +// Load a framebuffer to be used for rendering +// NOTE: No textures attached +unsigned int rlLoadFramebuffer(void) +{ + unsigned int fboId = 0; + +#if (defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2)) && defined(RLGL_RENDER_TEXTURES_HINT) + glGenFramebuffers(1, &fboId); // Create the framebuffer object + glBindFramebuffer(GL_FRAMEBUFFER, 0); // Unbind any framebuffer +#endif + + return fboId; +} + +// Attach color buffer texture to an fbo (unloads previous attachment) +// NOTE: Attach type: 0-Color, 1-Depth renderbuffer, 2-Depth texture +void rlFramebufferAttach(unsigned int fboId, unsigned int texId, int attachType, int texType, int mipLevel) +{ +#if (defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2)) && defined(RLGL_RENDER_TEXTURES_HINT) + glBindFramebuffer(GL_FRAMEBUFFER, fboId); + + switch (attachType) + { + case RL_ATTACHMENT_COLOR_CHANNEL0: + case RL_ATTACHMENT_COLOR_CHANNEL1: + case RL_ATTACHMENT_COLOR_CHANNEL2: + case RL_ATTACHMENT_COLOR_CHANNEL3: + case RL_ATTACHMENT_COLOR_CHANNEL4: + case RL_ATTACHMENT_COLOR_CHANNEL5: + case RL_ATTACHMENT_COLOR_CHANNEL6: + case RL_ATTACHMENT_COLOR_CHANNEL7: + { + if (texType == RL_ATTACHMENT_TEXTURE2D) glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + attachType, GL_TEXTURE_2D, texId, mipLevel); + else if (texType == RL_ATTACHMENT_RENDERBUFFER) glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + attachType, GL_RENDERBUFFER, texId); + else if (texType >= RL_ATTACHMENT_CUBEMAP_POSITIVE_X) glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + attachType, GL_TEXTURE_CUBE_MAP_POSITIVE_X + texType, texId, mipLevel); + + } break; + case RL_ATTACHMENT_DEPTH: + { + if (texType == RL_ATTACHMENT_TEXTURE2D) glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, texId, mipLevel); + else if (texType == RL_ATTACHMENT_RENDERBUFFER) glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, texId); + + } break; + case RL_ATTACHMENT_STENCIL: + { + if (texType == RL_ATTACHMENT_TEXTURE2D) glFramebufferTexture2D(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_TEXTURE_2D, texId, mipLevel); + else if (texType == RL_ATTACHMENT_RENDERBUFFER) glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, texId); + + } break; + default: break; + } + + glBindFramebuffer(GL_FRAMEBUFFER, 0); +#endif +} + +// Verify render texture is complete +bool rlFramebufferComplete(unsigned int id) +{ + bool result = false; + +#if (defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2)) && defined(RLGL_RENDER_TEXTURES_HINT) + glBindFramebuffer(GL_FRAMEBUFFER, id); + + GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER); + + if (status != GL_FRAMEBUFFER_COMPLETE) + { + switch (status) + { + case GL_FRAMEBUFFER_UNSUPPORTED: TRACELOG(RL_LOG_WARNING, "FBO: [ID %i] Framebuffer is unsupported", id); break; + case GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT: TRACELOG(RL_LOG_WARNING, "FBO: [ID %i] Framebuffer has incomplete attachment", id); break; +#if defined(GRAPHICS_API_OPENGL_ES2) + case GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS: TRACELOG(RL_LOG_WARNING, "FBO: [ID %i] Framebuffer has incomplete dimensions", id); break; +#endif + case GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT: TRACELOG(RL_LOG_WARNING, "FBO: [ID %i] Framebuffer has a missing attachment", id); break; + default: break; + } + } + + glBindFramebuffer(GL_FRAMEBUFFER, 0); + + result = (status == GL_FRAMEBUFFER_COMPLETE); +#endif + + return result; +} + +// Unload framebuffer from GPU memory +// NOTE: All attached textures/cubemaps/renderbuffers are also deleted +void rlUnloadFramebuffer(unsigned int id) +{ +#if (defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2)) && defined(RLGL_RENDER_TEXTURES_HINT) + // Query depth attachment to automatically delete texture/renderbuffer + int depthType = 0, depthId = 0; + glBindFramebuffer(GL_FRAMEBUFFER, id); // Bind framebuffer to query depth texture type + glGetFramebufferAttachmentParameteriv(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE, &depthType); + + // TODO: Review warning retrieving object name in WebGL + // WARNING: WebGL: INVALID_ENUM: getFramebufferAttachmentParameter: invalid parameter name + // https://registry.khronos.org/webgl/specs/latest/1.0/ + glGetFramebufferAttachmentParameteriv(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME, &depthId); + + unsigned int depthIdU = (unsigned int)depthId; + if (depthType == GL_RENDERBUFFER) glDeleteRenderbuffers(1, &depthIdU); + else if (depthType == GL_TEXTURE) glDeleteTextures(1, &depthIdU); + + // NOTE: If a texture object is deleted while its image is attached to the *currently bound* framebuffer, + // the texture image is automatically detached from the currently bound framebuffer + + glBindFramebuffer(GL_FRAMEBUFFER, 0); + glDeleteFramebuffers(1, &id); + + TRACELOG(RL_LOG_INFO, "FBO: [ID %i] Unloaded framebuffer from VRAM (GPU)", id); +#endif +} + +// Vertex data management +//----------------------------------------------------------------------------------------- +// Load a new attributes buffer +unsigned int rlLoadVertexBuffer(const void *buffer, int size, bool dynamic) +{ + unsigned int id = 0; + +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glGenBuffers(1, &id); + glBindBuffer(GL_ARRAY_BUFFER, id); + glBufferData(GL_ARRAY_BUFFER, size, buffer, dynamic? GL_DYNAMIC_DRAW : GL_STATIC_DRAW); +#endif + + return id; +} + +// Load a new attributes element buffer +unsigned int rlLoadVertexBufferElement(const void *buffer, int size, bool dynamic) +{ + unsigned int id = 0; + +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glGenBuffers(1, &id); + glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, id); + glBufferData(GL_ELEMENT_ARRAY_BUFFER, size, buffer, dynamic? GL_DYNAMIC_DRAW : GL_STATIC_DRAW); +#endif + + return id; +} + +// Enable vertex buffer (VBO) +void rlEnableVertexBuffer(unsigned int id) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glBindBuffer(GL_ARRAY_BUFFER, id); +#endif +} + +// Disable vertex buffer (VBO) +void rlDisableVertexBuffer(void) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glBindBuffer(GL_ARRAY_BUFFER, 0); +#endif +} + +// Enable vertex buffer element (VBO element) +void rlEnableVertexBufferElement(unsigned int id) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, id); +#endif +} + +// Disable vertex buffer element (VBO element) +void rlDisableVertexBufferElement(void) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); +#endif +} + +// Update vertex buffer with new data +// NOTE: dataSize and offset must be provided in bytes +void rlUpdateVertexBuffer(unsigned int id, const void *data, int dataSize, int offset) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glBindBuffer(GL_ARRAY_BUFFER, id); + glBufferSubData(GL_ARRAY_BUFFER, offset, dataSize, data); +#endif +} + +// Update vertex buffer elements with new data +// NOTE: dataSize and offset must be provided in bytes +void rlUpdateVertexBufferElements(unsigned int id, const void *data, int dataSize, int offset) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, id); + glBufferSubData(GL_ELEMENT_ARRAY_BUFFER, offset, dataSize, data); +#endif +} + +// Enable vertex array object (VAO) +bool rlEnableVertexArray(unsigned int vaoId) +{ + bool result = false; +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + if (RLGL.ExtSupported.vao) + { + glBindVertexArray(vaoId); + result = true; + } +#endif + return result; +} + +// Disable vertex array object (VAO) +void rlDisableVertexArray(void) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + if (RLGL.ExtSupported.vao) glBindVertexArray(0); +#endif +} + +// Enable vertex attribute index +void rlEnableVertexAttribute(unsigned int index) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glEnableVertexAttribArray(index); +#endif +} + +// Disable vertex attribute index +void rlDisableVertexAttribute(unsigned int index) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glDisableVertexAttribArray(index); +#endif +} + +// Draw vertex array +void rlDrawVertexArray(int offset, int count) +{ + glDrawArrays(GL_TRIANGLES, offset, count); +} + +// Draw vertex array elements +void rlDrawVertexArrayElements(int offset, int count, const void *buffer) +{ + // NOTE: Added pointer math separately from function to avoid UBSAN complaining + unsigned short *bufferPtr = (unsigned short *)buffer; + if (offset > 0) bufferPtr += offset; + + glDrawElements(GL_TRIANGLES, count, GL_UNSIGNED_SHORT, (const unsigned short *)bufferPtr); +} + +// Draw vertex array instanced +void rlDrawVertexArrayInstanced(int offset, int count, int instances) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glDrawArraysInstanced(GL_TRIANGLES, 0, count, instances); +#endif +} + +// Draw vertex array elements instanced +void rlDrawVertexArrayElementsInstanced(int offset, int count, const void *buffer, int instances) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + // NOTE: Added pointer math separately from function to avoid UBSAN complaining + unsigned short *bufferPtr = (unsigned short *)buffer; + if (offset > 0) bufferPtr += offset; + + glDrawElementsInstanced(GL_TRIANGLES, count, GL_UNSIGNED_SHORT, (const unsigned short *)bufferPtr, instances); +#endif +} + +#if defined(GRAPHICS_API_OPENGL_11) +// Enable vertex state pointer +void rlEnableStatePointer(int vertexAttribType, void *buffer) +{ + if (buffer != NULL) glEnableClientState(vertexAttribType); + switch (vertexAttribType) + { + case GL_VERTEX_ARRAY: glVertexPointer(3, GL_FLOAT, 0, buffer); break; + case GL_TEXTURE_COORD_ARRAY: glTexCoordPointer(2, GL_FLOAT, 0, buffer); break; + case GL_NORMAL_ARRAY: if (buffer != NULL) glNormalPointer(GL_FLOAT, 0, buffer); break; + case GL_COLOR_ARRAY: if (buffer != NULL) glColorPointer(4, GL_UNSIGNED_BYTE, 0, buffer); break; + //case GL_INDEX_ARRAY: if (buffer != NULL) glIndexPointer(GL_SHORT, 0, buffer); break; // Indexed colors + default: break; + } +} + +// Disable vertex state pointer +void rlDisableStatePointer(int vertexAttribType) +{ + glDisableClientState(vertexAttribType); +} +#endif + +// Load vertex array object (VAO) +unsigned int rlLoadVertexArray(void) +{ + unsigned int vaoId = 0; +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + if (RLGL.ExtSupported.vao) + { + glGenVertexArrays(1, &vaoId); + } +#endif + return vaoId; +} + +// Set vertex attribute +void rlSetVertexAttribute(unsigned int index, int compSize, int type, bool normalized, int stride, int offset) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + // NOTE: Data type could be: GL_BYTE, GL_UNSIGNED_BYTE, GL_SHORT, GL_UNSIGNED_SHORT, GL_INT, GL_UNSIGNED_INT + // Additional types (depends on OpenGL version or extensions): + // - GL_HALF_FLOAT, GL_FLOAT, GL_DOUBLE, GL_FIXED, + // - GL_INT_2_10_10_10_REV, GL_UNSIGNED_INT_2_10_10_10_REV, GL_UNSIGNED_INT_10F_11F_11F_REV + + size_t offsetNative = offset; + glVertexAttribPointer(index, compSize, type, normalized, stride, (void *)offsetNative); +#endif +} + +// Set vertex attribute divisor +void rlSetVertexAttributeDivisor(unsigned int index, int divisor) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glVertexAttribDivisor(index, divisor); +#endif +} + +// Unload vertex array object (VAO) +void rlUnloadVertexArray(unsigned int vaoId) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + if (RLGL.ExtSupported.vao) + { + glBindVertexArray(0); + glDeleteVertexArrays(1, &vaoId); + TRACELOG(RL_LOG_INFO, "VAO: [ID %i] Unloaded vertex array data from VRAM (GPU)", vaoId); + } +#endif +} + +// Unload vertex buffer (VBO) +void rlUnloadVertexBuffer(unsigned int vboId) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glDeleteBuffers(1, &vboId); + //TRACELOG(RL_LOG_INFO, "VBO: Unloaded vertex data from VRAM (GPU)"); +#endif +} + +// Shaders management +//----------------------------------------------------------------------------------------------- +// Load shader from code strings +// NOTE: If shader string is NULL, using default vertex/fragment shaders +unsigned int rlLoadShaderCode(const char *vsCode, const char *fsCode) +{ + unsigned int id = 0; + +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + unsigned int vertexShaderId = 0; + unsigned int fragmentShaderId = 0; + + // Compile vertex shader (if provided) + // NOTE: If not vertex shader is provided, use default one + if (vsCode != NULL) vertexShaderId = rlCompileShader(vsCode, GL_VERTEX_SHADER); + else vertexShaderId = RLGL.State.defaultVShaderId; + + // Compile fragment shader (if provided) + // NOTE: If not vertex shader is provided, use default one + if (fsCode != NULL) fragmentShaderId = rlCompileShader(fsCode, GL_FRAGMENT_SHADER); + else fragmentShaderId = RLGL.State.defaultFShaderId; + + // In case vertex and fragment shader are the default ones, no need to recompile, we can just assign the default shader program id + if ((vertexShaderId == RLGL.State.defaultVShaderId) && (fragmentShaderId == RLGL.State.defaultFShaderId)) id = RLGL.State.defaultShaderId; + else if ((vertexShaderId > 0) && (fragmentShaderId > 0)) + { + // One of or both shader are new, we need to compile a new shader program + id = rlLoadShaderProgram(vertexShaderId, fragmentShaderId); + + // We can detach and delete vertex/fragment shaders (if not default ones) + // NOTE: We detach shader before deletion to make sure memory is freed + if (vertexShaderId != RLGL.State.defaultVShaderId) + { + // WARNING: Shader program linkage could fail and returned id is 0 + if (id > 0) glDetachShader(id, vertexShaderId); + glDeleteShader(vertexShaderId); + } + if (fragmentShaderId != RLGL.State.defaultFShaderId) + { + // WARNING: Shader program linkage could fail and returned id is 0 + if (id > 0) glDetachShader(id, fragmentShaderId); + glDeleteShader(fragmentShaderId); + } + + // In case shader program loading failed, we assign default shader + if (id == 0) + { + // In case shader loading fails, we return the default shader + TRACELOG(RL_LOG_WARNING, "SHADER: Failed to load custom shader code, using default shader"); + id = RLGL.State.defaultShaderId; + } + /* + else + { + // Get available shader uniforms + // NOTE: This information is useful for debug... + int uniformCount = -1; + glGetProgramiv(id, GL_ACTIVE_UNIFORMS, &uniformCount); + + for (int i = 0; i < uniformCount; i++) + { + int namelen = -1; + int num = -1; + char name[256] = { 0 }; // Assume no variable names longer than 256 + GLenum type = GL_ZERO; + + // Get the name of the uniforms + glGetActiveUniform(id, i, sizeof(name) - 1, &namelen, &num, &type, name); + + name[namelen] = 0; + TRACELOGD("SHADER: [ID %i] Active uniform (%s) set at location: %i", id, name, glGetUniformLocation(id, name)); + } + } + */ + } +#endif + + return id; +} + +// Compile custom shader and return shader id +unsigned int rlCompileShader(const char *shaderCode, int type) +{ + unsigned int shader = 0; + +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + shader = glCreateShader(type); + glShaderSource(shader, 1, &shaderCode, NULL); + + GLint success = 0; + glCompileShader(shader); + glGetShaderiv(shader, GL_COMPILE_STATUS, &success); + + if (success == GL_FALSE) + { + switch (type) + { + case GL_VERTEX_SHADER: TRACELOG(RL_LOG_WARNING, "SHADER: [ID %i] Failed to compile vertex shader code", shader); break; + case GL_FRAGMENT_SHADER: TRACELOG(RL_LOG_WARNING, "SHADER: [ID %i] Failed to compile fragment shader code", shader); break; + //case GL_GEOMETRY_SHADER: + #if defined(GRAPHICS_API_OPENGL_43) + case GL_COMPUTE_SHADER: TRACELOG(RL_LOG_WARNING, "SHADER: [ID %i] Failed to compile compute shader code", shader); break; + #elif defined(GRAPHICS_API_OPENGL_33) + case GL_COMPUTE_SHADER: TRACELOG(RL_LOG_WARNING, "SHADER: Compute shaders not enabled. Define GRAPHICS_API_OPENGL_43", shader); break; + #endif + default: break; + } + + int maxLength = 0; + glGetShaderiv(shader, GL_INFO_LOG_LENGTH, &maxLength); + + if (maxLength > 0) + { + int length = 0; + char *log = (char *)RL_CALLOC(maxLength, sizeof(char)); + glGetShaderInfoLog(shader, maxLength, &length, log); + TRACELOG(RL_LOG_WARNING, "SHADER: [ID %i] Compile error: %s", shader, log); + RL_FREE(log); + } + + shader = 0; + } + else + { + switch (type) + { + case GL_VERTEX_SHADER: TRACELOG(RL_LOG_INFO, "SHADER: [ID %i] Vertex shader compiled successfully", shader); break; + case GL_FRAGMENT_SHADER: TRACELOG(RL_LOG_INFO, "SHADER: [ID %i] Fragment shader compiled successfully", shader); break; + //case GL_GEOMETRY_SHADER: + #if defined(GRAPHICS_API_OPENGL_43) + case GL_COMPUTE_SHADER: TRACELOG(RL_LOG_INFO, "SHADER: [ID %i] Compute shader compiled successfully", shader); break; + #elif defined(GRAPHICS_API_OPENGL_33) + case GL_COMPUTE_SHADER: TRACELOG(RL_LOG_WARNING, "SHADER: Compute shaders not enabled. Define GRAPHICS_API_OPENGL_43", shader); break; + #endif + default: break; + } + } +#endif + + return shader; +} + +// Load custom shader strings and return program id +unsigned int rlLoadShaderProgram(unsigned int vShaderId, unsigned int fShaderId) +{ + unsigned int program = 0; + +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + GLint success = 0; + program = glCreateProgram(); + + glAttachShader(program, vShaderId); + glAttachShader(program, fShaderId); + + // NOTE: Default attribute shader locations must be Bound before linking + glBindAttribLocation(program, RL_DEFAULT_SHADER_ATTRIB_LOCATION_POSITION, RL_DEFAULT_SHADER_ATTRIB_NAME_POSITION); + glBindAttribLocation(program, RL_DEFAULT_SHADER_ATTRIB_LOCATION_TEXCOORD, RL_DEFAULT_SHADER_ATTRIB_NAME_TEXCOORD); + glBindAttribLocation(program, RL_DEFAULT_SHADER_ATTRIB_LOCATION_NORMAL, RL_DEFAULT_SHADER_ATTRIB_NAME_NORMAL); + glBindAttribLocation(program, RL_DEFAULT_SHADER_ATTRIB_LOCATION_COLOR, RL_DEFAULT_SHADER_ATTRIB_NAME_COLOR); + glBindAttribLocation(program, RL_DEFAULT_SHADER_ATTRIB_LOCATION_TANGENT, RL_DEFAULT_SHADER_ATTRIB_NAME_TANGENT); + glBindAttribLocation(program, RL_DEFAULT_SHADER_ATTRIB_LOCATION_TEXCOORD2, RL_DEFAULT_SHADER_ATTRIB_NAME_TEXCOORD2); + +#ifdef RL_SUPPORT_MESH_GPU_SKINNING + glBindAttribLocation(program, RL_DEFAULT_SHADER_ATTRIB_LOCATION_BONEIDS, RL_DEFAULT_SHADER_ATTRIB_NAME_BONEIDS); + glBindAttribLocation(program, RL_DEFAULT_SHADER_ATTRIB_LOCATION_BONEWEIGHTS, RL_DEFAULT_SHADER_ATTRIB_NAME_BONEWEIGHTS); +#endif + + // NOTE: If some attrib name is no found on the shader, it locations becomes -1 + + glLinkProgram(program); + + // NOTE: All uniform variables are intitialised to 0 when a program links + + glGetProgramiv(program, GL_LINK_STATUS, &success); + + if (success == GL_FALSE) + { + TRACELOG(RL_LOG_WARNING, "SHADER: [ID %i] Failed to link shader program", program); + + int maxLength = 0; + glGetProgramiv(program, GL_INFO_LOG_LENGTH, &maxLength); + + if (maxLength > 0) + { + int length = 0; + char *log = (char *)RL_CALLOC(maxLength, sizeof(char)); + glGetProgramInfoLog(program, maxLength, &length, log); + TRACELOG(RL_LOG_WARNING, "SHADER: [ID %i] Link error: %s", program, log); + RL_FREE(log); + } + + glDeleteProgram(program); + + program = 0; + } + else + { + // Get the size of compiled shader program (not available on OpenGL ES 2.0) + // NOTE: If GL_LINK_STATUS is GL_FALSE, program binary length is zero + //GLint binarySize = 0; + //glGetProgramiv(id, GL_PROGRAM_BINARY_LENGTH, &binarySize); + + TRACELOG(RL_LOG_INFO, "SHADER: [ID %i] Program shader loaded successfully", program); + } +#endif + return program; +} + +// Unload shader program +void rlUnloadShaderProgram(unsigned int id) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glDeleteProgram(id); + + TRACELOG(RL_LOG_INFO, "SHADER: [ID %i] Unloaded shader program data from VRAM (GPU)", id); +#endif +} + +// Get shader location uniform +int rlGetLocationUniform(unsigned int shaderId, const char *uniformName) +{ + int location = -1; +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + location = glGetUniformLocation(shaderId, uniformName); + + //if (location == -1) TRACELOG(RL_LOG_WARNING, "SHADER: [ID %i] Failed to find shader uniform: %s", shaderId, uniformName); + //else TRACELOG(RL_LOG_INFO, "SHADER: [ID %i] Shader uniform (%s) set at location: %i", shaderId, uniformName, location); +#endif + return location; +} + +// Get shader location attribute +int rlGetLocationAttrib(unsigned int shaderId, const char *attribName) +{ + int location = -1; +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + location = glGetAttribLocation(shaderId, attribName); + + //if (location == -1) TRACELOG(RL_LOG_WARNING, "SHADER: [ID %i] Failed to find shader attribute: %s", shaderId, attribName); + //else TRACELOG(RL_LOG_INFO, "SHADER: [ID %i] Shader attribute (%s) set at location: %i", shaderId, attribName, location); +#endif + return location; +} + +// Set shader value uniform +void rlSetUniform(int locIndex, const void *value, int uniformType, int count) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + switch (uniformType) + { + case RL_SHADER_UNIFORM_FLOAT: glUniform1fv(locIndex, count, (float *)value); break; + case RL_SHADER_UNIFORM_VEC2: glUniform2fv(locIndex, count, (float *)value); break; + case RL_SHADER_UNIFORM_VEC3: glUniform3fv(locIndex, count, (float *)value); break; + case RL_SHADER_UNIFORM_VEC4: glUniform4fv(locIndex, count, (float *)value); break; + case RL_SHADER_UNIFORM_INT: glUniform1iv(locIndex, count, (int *)value); break; + case RL_SHADER_UNIFORM_IVEC2: glUniform2iv(locIndex, count, (int *)value); break; + case RL_SHADER_UNIFORM_IVEC3: glUniform3iv(locIndex, count, (int *)value); break; + case RL_SHADER_UNIFORM_IVEC4: glUniform4iv(locIndex, count, (int *)value); break; + #if !defined(GRAPHICS_API_OPENGL_ES2) + case RL_SHADER_UNIFORM_UINT: glUniform1uiv(locIndex, count, (unsigned int *)value); break; + case RL_SHADER_UNIFORM_UIVEC2: glUniform2uiv(locIndex, count, (unsigned int *)value); break; + case RL_SHADER_UNIFORM_UIVEC3: glUniform3uiv(locIndex, count, (unsigned int *)value); break; + case RL_SHADER_UNIFORM_UIVEC4: glUniform4uiv(locIndex, count, (unsigned int *)value); break; + #endif + case RL_SHADER_UNIFORM_SAMPLER2D: glUniform1iv(locIndex, count, (int *)value); break; + default: TRACELOG(RL_LOG_WARNING, "SHADER: Failed to set uniform value, data type not recognized"); + + // TODO: Support glUniform1uiv(), glUniform2uiv(), glUniform3uiv(), glUniform4uiv() + } +#endif +} + +// Set shader value attribute +void rlSetVertexAttributeDefault(int locIndex, const void *value, int attribType, int count) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + switch (attribType) + { + case RL_SHADER_ATTRIB_FLOAT: if (count == 1) glVertexAttrib1fv(locIndex, (float *)value); break; + case RL_SHADER_ATTRIB_VEC2: if (count == 2) glVertexAttrib2fv(locIndex, (float *)value); break; + case RL_SHADER_ATTRIB_VEC3: if (count == 3) glVertexAttrib3fv(locIndex, (float *)value); break; + case RL_SHADER_ATTRIB_VEC4: if (count == 4) glVertexAttrib4fv(locIndex, (float *)value); break; + default: TRACELOG(RL_LOG_WARNING, "SHADER: Failed to set attrib default value, data type not recognized"); + } +#endif +} + +// Set shader value uniform matrix +void rlSetUniformMatrix(int locIndex, Matrix mat) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + float matfloat[16] = { + mat.m0, mat.m1, mat.m2, mat.m3, + mat.m4, mat.m5, mat.m6, mat.m7, + mat.m8, mat.m9, mat.m10, mat.m11, + mat.m12, mat.m13, mat.m14, mat.m15 + }; + glUniformMatrix4fv(locIndex, 1, false, matfloat); +#endif +} + +// Set shader value uniform matrix +void rlSetUniformMatrices(int locIndex, const Matrix *matrices, int count) +{ +#if defined(GRAPHICS_API_OPENGL_33) + glUniformMatrix4fv(locIndex, count, true, (const float *)matrices); +#elif defined(GRAPHICS_API_OPENGL_ES2) + // WARNING: WebGL does not support Matrix transpose ("true" parameter) + // REF: https://developer.mozilla.org/en-US/docs/Web/API/WebGLRenderingContext/uniformMatrix + glUniformMatrix4fv(locIndex, count, false, (const float *)matrices); +#endif +} + +// Set shader value uniform sampler +void rlSetUniformSampler(int locIndex, unsigned int textureId) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + // Check if texture is already active + for (int i = 0; i < RL_DEFAULT_BATCH_MAX_TEXTURE_UNITS; i++) + { + if (RLGL.State.activeTextureId[i] == textureId) + { + glUniform1i(locIndex, 1 + i); + return; + } + } + + // Register a new active texture for the internal batch system + // NOTE: Default texture is always activated as GL_TEXTURE0 + for (int i = 0; i < RL_DEFAULT_BATCH_MAX_TEXTURE_UNITS; i++) + { + if (RLGL.State.activeTextureId[i] == 0) + { + glUniform1i(locIndex, 1 + i); // Activate new texture unit + RLGL.State.activeTextureId[i] = textureId; // Save texture id for binding on drawing + break; + } + } +#endif +} + +// Set shader currently active (id and locations) +void rlSetShader(unsigned int id, int *locs) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + if (RLGL.State.currentShaderId != id) + { + rlDrawRenderBatch(RLGL.currentBatch); + RLGL.State.currentShaderId = id; + RLGL.State.currentShaderLocs = locs; + } +#endif +} + +// Load compute shader program +unsigned int rlLoadComputeShaderProgram(unsigned int shaderId) +{ + unsigned int program = 0; + +#if defined(GRAPHICS_API_OPENGL_43) + GLint success = 0; + program = glCreateProgram(); + glAttachShader(program, shaderId); + glLinkProgram(program); + + // NOTE: All uniform variables are intitialised to 0 when a program links + + glGetProgramiv(program, GL_LINK_STATUS, &success); + + if (success == GL_FALSE) + { + TRACELOG(RL_LOG_WARNING, "SHADER: [ID %i] Failed to link compute shader program", program); + + int maxLength = 0; + glGetProgramiv(program, GL_INFO_LOG_LENGTH, &maxLength); + + if (maxLength > 0) + { + int length = 0; + char *log = (char *)RL_CALLOC(maxLength, sizeof(char)); + glGetProgramInfoLog(program, maxLength, &length, log); + TRACELOG(RL_LOG_WARNING, "SHADER: [ID %i] Link error: %s", program, log); + RL_FREE(log); + } + + glDeleteProgram(program); + + program = 0; + } + else + { + // Get the size of compiled shader program (not available on OpenGL ES 2.0) + // NOTE: If GL_LINK_STATUS is GL_FALSE, program binary length is zero + //GLint binarySize = 0; + //glGetProgramiv(id, GL_PROGRAM_BINARY_LENGTH, &binarySize); + + TRACELOG(RL_LOG_INFO, "SHADER: [ID %i] Compute shader program loaded successfully", program); + } +#else + TRACELOG(RL_LOG_WARNING, "SHADER: Compute shaders not enabled. Define GRAPHICS_API_OPENGL_43"); +#endif + + return program; +} + +// Dispatch compute shader (equivalent to *draw* for graphics pilepine) +void rlComputeShaderDispatch(unsigned int groupX, unsigned int groupY, unsigned int groupZ) +{ +#if defined(GRAPHICS_API_OPENGL_43) + glDispatchCompute(groupX, groupY, groupZ); +#endif +} + +// Load shader storage buffer object (SSBO) +unsigned int rlLoadShaderBuffer(unsigned int size, const void *data, int usageHint) +{ + unsigned int ssbo = 0; + +#if defined(GRAPHICS_API_OPENGL_43) + glGenBuffers(1, &ssbo); + glBindBuffer(GL_SHADER_STORAGE_BUFFER, ssbo); + glBufferData(GL_SHADER_STORAGE_BUFFER, size, data, usageHint? usageHint : RL_STREAM_COPY); + if (data == NULL) glClearBufferData(GL_SHADER_STORAGE_BUFFER, GL_R8UI, GL_RED_INTEGER, GL_UNSIGNED_BYTE, NULL); // Clear buffer data to 0 + glBindBuffer(GL_SHADER_STORAGE_BUFFER, 0); +#else + TRACELOG(RL_LOG_WARNING, "SSBO: SSBO not enabled. Define GRAPHICS_API_OPENGL_43"); +#endif + + return ssbo; +} + +// Unload shader storage buffer object (SSBO) +void rlUnloadShaderBuffer(unsigned int ssboId) +{ +#if defined(GRAPHICS_API_OPENGL_43) + glDeleteBuffers(1, &ssboId); +#else + TRACELOG(RL_LOG_WARNING, "SSBO: SSBO not enabled. Define GRAPHICS_API_OPENGL_43"); +#endif + +} + +// Update SSBO buffer data +void rlUpdateShaderBuffer(unsigned int id, const void *data, unsigned int dataSize, unsigned int offset) +{ +#if defined(GRAPHICS_API_OPENGL_43) + glBindBuffer(GL_SHADER_STORAGE_BUFFER, id); + glBufferSubData(GL_SHADER_STORAGE_BUFFER, offset, dataSize, data); +#endif +} + +// Get SSBO buffer size +unsigned int rlGetShaderBufferSize(unsigned int id) +{ +#if defined(GRAPHICS_API_OPENGL_43) + GLint64 size = 0; + glBindBuffer(GL_SHADER_STORAGE_BUFFER, id); + glGetBufferParameteri64v(GL_SHADER_STORAGE_BUFFER, GL_BUFFER_SIZE, &size); + return (size > 0)? (unsigned int)size : 0; +#else + return 0; +#endif +} + +// Read SSBO buffer data (GPU->CPU) +void rlReadShaderBuffer(unsigned int id, void *dest, unsigned int count, unsigned int offset) +{ +#if defined(GRAPHICS_API_OPENGL_43) + glBindBuffer(GL_SHADER_STORAGE_BUFFER, id); + glGetBufferSubData(GL_SHADER_STORAGE_BUFFER, offset, count, dest); +#endif +} + +// Bind SSBO buffer +void rlBindShaderBuffer(unsigned int id, unsigned int index) +{ +#if defined(GRAPHICS_API_OPENGL_43) + glBindBufferBase(GL_SHADER_STORAGE_BUFFER, index, id); +#endif +} + +// Copy SSBO buffer data +void rlCopyShaderBuffer(unsigned int destId, unsigned int srcId, unsigned int destOffset, unsigned int srcOffset, unsigned int count) +{ +#if defined(GRAPHICS_API_OPENGL_43) + glBindBuffer(GL_COPY_READ_BUFFER, srcId); + glBindBuffer(GL_COPY_WRITE_BUFFER, destId); + glCopyBufferSubData(GL_COPY_READ_BUFFER, GL_COPY_WRITE_BUFFER, srcOffset, destOffset, count); +#endif +} + +// Bind image texture +void rlBindImageTexture(unsigned int id, unsigned int index, int format, bool readonly) +{ +#if defined(GRAPHICS_API_OPENGL_43) + unsigned int glInternalFormat = 0, glFormat = 0, glType = 0; + + rlGetGlTextureFormats(format, &glInternalFormat, &glFormat, &glType); + glBindImageTexture(index, id, 0, 0, 0, readonly? GL_READ_ONLY : GL_READ_WRITE, glInternalFormat); +#else + TRACELOG(RL_LOG_WARNING, "TEXTURE: Image texture binding not enabled. Define GRAPHICS_API_OPENGL_43"); +#endif +} + +// Matrix state management +//----------------------------------------------------------------------------------------- +// Get internal modelview matrix +Matrix rlGetMatrixModelview(void) +{ + Matrix matrix = rlMatrixIdentity(); +#if defined(GRAPHICS_API_OPENGL_11) + float mat[16]; + glGetFloatv(GL_MODELVIEW_MATRIX, mat); + matrix.m0 = mat[0]; + matrix.m1 = mat[1]; + matrix.m2 = mat[2]; + matrix.m3 = mat[3]; + matrix.m4 = mat[4]; + matrix.m5 = mat[5]; + matrix.m6 = mat[6]; + matrix.m7 = mat[7]; + matrix.m8 = mat[8]; + matrix.m9 = mat[9]; + matrix.m10 = mat[10]; + matrix.m11 = mat[11]; + matrix.m12 = mat[12]; + matrix.m13 = mat[13]; + matrix.m14 = mat[14]; + matrix.m15 = mat[15]; +#else + matrix = RLGL.State.modelview; +#endif + return matrix; +} + +// Get internal projection matrix +Matrix rlGetMatrixProjection(void) +{ +#if defined(GRAPHICS_API_OPENGL_11) + float mat[16]; + glGetFloatv(GL_PROJECTION_MATRIX,mat); + Matrix m; + m.m0 = mat[0]; + m.m1 = mat[1]; + m.m2 = mat[2]; + m.m3 = mat[3]; + m.m4 = mat[4]; + m.m5 = mat[5]; + m.m6 = mat[6]; + m.m7 = mat[7]; + m.m8 = mat[8]; + m.m9 = mat[9]; + m.m10 = mat[10]; + m.m11 = mat[11]; + m.m12 = mat[12]; + m.m13 = mat[13]; + m.m14 = mat[14]; + m.m15 = mat[15]; + return m; +#else + return RLGL.State.projection; +#endif +} + +// Get internal accumulated transform matrix +Matrix rlGetMatrixTransform(void) +{ + Matrix mat = rlMatrixIdentity(); +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + // TODO: Consider possible transform matrices in the RLGL.State.stack + // Is this the right order? or should we start with the first stored matrix instead of the last one? + //Matrix matStackTransform = rlMatrixIdentity(); + //for (int i = RLGL.State.stackCounter; i > 0; i--) matStackTransform = rlMatrixMultiply(RLGL.State.stack[i], matStackTransform); + mat = RLGL.State.transform; +#endif + return mat; +} + +// Get internal projection matrix for stereo render (selected eye) +Matrix rlGetMatrixProjectionStereo(int eye) +{ + Matrix mat = rlMatrixIdentity(); +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + mat = RLGL.State.projectionStereo[eye]; +#endif + return mat; +} + +// Get internal view offset matrix for stereo render (selected eye) +Matrix rlGetMatrixViewOffsetStereo(int eye) +{ + Matrix mat = rlMatrixIdentity(); +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + mat = RLGL.State.viewOffsetStereo[eye]; +#endif + return mat; +} + +// Set a custom modelview matrix (replaces internal modelview matrix) +void rlSetMatrixModelview(Matrix view) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + RLGL.State.modelview = view; +#endif +} + +// Set a custom projection matrix (replaces internal projection matrix) +void rlSetMatrixProjection(Matrix projection) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + RLGL.State.projection = projection; +#endif +} + +// Set eyes projection matrices for stereo rendering +void rlSetMatrixProjectionStereo(Matrix right, Matrix left) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + RLGL.State.projectionStereo[0] = right; + RLGL.State.projectionStereo[1] = left; +#endif +} + +// Set eyes view offsets matrices for stereo rendering +void rlSetMatrixViewOffsetStereo(Matrix right, Matrix left) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + RLGL.State.viewOffsetStereo[0] = right; + RLGL.State.viewOffsetStereo[1] = left; +#endif +} + +// Load and draw a quad in NDC +void rlLoadDrawQuad(void) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + unsigned int quadVAO = 0; + unsigned int quadVBO = 0; + + float vertices[] = { + // Positions Texcoords + -1.0f, 1.0f, 0.0f, 0.0f, 1.0f, + -1.0f, -1.0f, 0.0f, 0.0f, 0.0f, + 1.0f, 1.0f, 0.0f, 1.0f, 1.0f, + 1.0f, -1.0f, 0.0f, 1.0f, 0.0f, + }; + + // Gen VAO to contain VBO + glGenVertexArrays(1, &quadVAO); + glBindVertexArray(quadVAO); + + // Gen and fill vertex buffer (VBO) + glGenBuffers(1, &quadVBO); + glBindBuffer(GL_ARRAY_BUFFER, quadVBO); + glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), &vertices, GL_STATIC_DRAW); + + // Bind vertex attributes (position, texcoords) + glEnableVertexAttribArray(RL_DEFAULT_SHADER_ATTRIB_LOCATION_POSITION); + glVertexAttribPointer(RL_DEFAULT_SHADER_ATTRIB_LOCATION_POSITION, 3, GL_FLOAT, GL_FALSE, 5*sizeof(float), (void *)0); // Positions + glEnableVertexAttribArray(RL_DEFAULT_SHADER_ATTRIB_LOCATION_TEXCOORD); + glVertexAttribPointer(RL_DEFAULT_SHADER_ATTRIB_LOCATION_TEXCOORD, 2, GL_FLOAT, GL_FALSE, 5*sizeof(float), (void *)(3*sizeof(float))); // Texcoords + + // Draw quad + glBindVertexArray(quadVAO); + glDrawArrays(GL_TRIANGLE_STRIP, 0, 4); + glBindVertexArray(0); + + // Delete buffers (VBO and VAO) + glDeleteBuffers(1, &quadVBO); + glDeleteVertexArrays(1, &quadVAO); +#endif +} + +// Load and draw a cube in NDC +void rlLoadDrawCube(void) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + unsigned int cubeVAO = 0; + unsigned int cubeVBO = 0; + + float vertices[] = { + // Positions Normals Texcoords + -1.0f, -1.0f, -1.0f, 0.0f, 0.0f, -1.0f, 0.0f, 0.0f, + 1.0f, 1.0f, -1.0f, 0.0f, 0.0f, -1.0f, 1.0f, 1.0f, + 1.0f, -1.0f, -1.0f, 0.0f, 0.0f, -1.0f, 1.0f, 0.0f, + 1.0f, 1.0f, -1.0f, 0.0f, 0.0f, -1.0f, 1.0f, 1.0f, + -1.0f, -1.0f, -1.0f, 0.0f, 0.0f, -1.0f, 0.0f, 0.0f, + -1.0f, 1.0f, -1.0f, 0.0f, 0.0f, -1.0f, 0.0f, 1.0f, + -1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, + 1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 1.0f, 1.0f, 0.0f, + 1.0f, 1.0f, 1.0f, 0.0f, 0.0f, 1.0f, 1.0f, 1.0f, + 1.0f, 1.0f, 1.0f, 0.0f, 0.0f, 1.0f, 1.0f, 1.0f, + -1.0f, 1.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f, + -1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, + -1.0f, 1.0f, 1.0f, -1.0f, 0.0f, 0.0f, 1.0f, 0.0f, + -1.0f, 1.0f, -1.0f, -1.0f, 0.0f, 0.0f, 1.0f, 1.0f, + -1.0f, -1.0f, -1.0f, -1.0f, 0.0f, 0.0f, 0.0f, 1.0f, + -1.0f, -1.0f, -1.0f, -1.0f, 0.0f, 0.0f, 0.0f, 1.0f, + -1.0f, -1.0f, 1.0f, -1.0f, 0.0f, 0.0f, 0.0f, 0.0f, + -1.0f, 1.0f, 1.0f, -1.0f, 0.0f, 0.0f, 1.0f, 0.0f, + 1.0f, 1.0f, 1.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, + 1.0f, -1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 1.0f, + 1.0f, 1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 1.0f, 1.0f, + 1.0f, -1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 1.0f, + 1.0f, 1.0f, 1.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, + 1.0f, -1.0f, 1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, + -1.0f, -1.0f, -1.0f, 0.0f, -1.0f, 0.0f, 0.0f, 1.0f, + 1.0f, -1.0f, -1.0f, 0.0f, -1.0f, 0.0f, 1.0f, 1.0f, + 1.0f, -1.0f, 1.0f, 0.0f, -1.0f, 0.0f, 1.0f, 0.0f, + 1.0f, -1.0f, 1.0f, 0.0f, -1.0f, 0.0f, 1.0f, 0.0f, + -1.0f, -1.0f, 1.0f, 0.0f, -1.0f, 0.0f, 0.0f, 0.0f, + -1.0f, -1.0f, -1.0f, 0.0f, -1.0f, 0.0f, 0.0f, 1.0f, + -1.0f, 1.0f, -1.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, + 1.0f, 1.0f, 1.0f, 0.0f, 1.0f, 0.0f, 1.0f, 0.0f, + 1.0f, 1.0f, -1.0f, 0.0f, 1.0f, 0.0f, 1.0f, 1.0f, + 1.0f, 1.0f, 1.0f, 0.0f, 1.0f, 0.0f, 1.0f, 0.0f, + -1.0f, 1.0f, -1.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, + -1.0f, 1.0f, 1.0f, 0.0f, 1.0f, 0.0f, 0.0f, 0.0f + }; + + // Gen VAO to contain VBO + glGenVertexArrays(1, &cubeVAO); + glBindVertexArray(cubeVAO); + + // Gen and fill vertex buffer (VBO) + glGenBuffers(1, &cubeVBO); + glBindBuffer(GL_ARRAY_BUFFER, cubeVBO); + glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW); + + // Bind vertex attributes (position, normals, texcoords) + glBindVertexArray(cubeVAO); + glEnableVertexAttribArray(RL_DEFAULT_SHADER_ATTRIB_LOCATION_POSITION); + glVertexAttribPointer(RL_DEFAULT_SHADER_ATTRIB_LOCATION_POSITION, 3, GL_FLOAT, GL_FALSE, 8*sizeof(float), (void *)0); // Positions + glEnableVertexAttribArray(RL_DEFAULT_SHADER_ATTRIB_LOCATION_NORMAL); + glVertexAttribPointer(RL_DEFAULT_SHADER_ATTRIB_LOCATION_NORMAL, 3, GL_FLOAT, GL_FALSE, 8*sizeof(float), (void *)(3*sizeof(float))); // Normals + glEnableVertexAttribArray(RL_DEFAULT_SHADER_ATTRIB_LOCATION_TEXCOORD); + glVertexAttribPointer(RL_DEFAULT_SHADER_ATTRIB_LOCATION_TEXCOORD, 2, GL_FLOAT, GL_FALSE, 8*sizeof(float), (void *)(6*sizeof(float))); // Texcoords + glBindBuffer(GL_ARRAY_BUFFER, 0); + glBindVertexArray(0); + + // Draw cube + glBindVertexArray(cubeVAO); + glDrawArrays(GL_TRIANGLES, 0, 36); + glBindVertexArray(0); + + // Delete VBO and VAO + glDeleteBuffers(1, &cubeVBO); + glDeleteVertexArrays(1, &cubeVAO); +#endif +} + +// Get name string for pixel format +const char *rlGetPixelFormatName(unsigned int format) +{ + switch (format) + { + case RL_PIXELFORMAT_UNCOMPRESSED_GRAYSCALE: return "GRAYSCALE"; break; // 8 bit per pixel (no alpha) + case RL_PIXELFORMAT_UNCOMPRESSED_GRAY_ALPHA: return "GRAY_ALPHA"; break; // 8*2 bpp (2 channels) + case RL_PIXELFORMAT_UNCOMPRESSED_R5G6B5: return "R5G6B5"; break; // 16 bpp + case RL_PIXELFORMAT_UNCOMPRESSED_R8G8B8: return "R8G8B8"; break; // 24 bpp + case RL_PIXELFORMAT_UNCOMPRESSED_R5G5B5A1: return "R5G5B5A1"; break; // 16 bpp (1 bit alpha) + case RL_PIXELFORMAT_UNCOMPRESSED_R4G4B4A4: return "R4G4B4A4"; break; // 16 bpp (4 bit alpha) + case RL_PIXELFORMAT_UNCOMPRESSED_R8G8B8A8: return "R8G8B8A8"; break; // 32 bpp + case RL_PIXELFORMAT_UNCOMPRESSED_R32: return "R32"; break; // 32 bpp (1 channel - float) + case RL_PIXELFORMAT_UNCOMPRESSED_R32G32B32: return "R32G32B32"; break; // 32*3 bpp (3 channels - float) + case RL_PIXELFORMAT_UNCOMPRESSED_R32G32B32A32: return "R32G32B32A32"; break; // 32*4 bpp (4 channels - float) + case RL_PIXELFORMAT_UNCOMPRESSED_R16: return "R16"; break; // 16 bpp (1 channel - half float) + case RL_PIXELFORMAT_UNCOMPRESSED_R16G16B16: return "R16G16B16"; break; // 16*3 bpp (3 channels - half float) + case RL_PIXELFORMAT_UNCOMPRESSED_R16G16B16A16: return "R16G16B16A16"; break; // 16*4 bpp (4 channels - half float) + case RL_PIXELFORMAT_COMPRESSED_DXT1_RGB: return "DXT1_RGB"; break; // 4 bpp (no alpha) + case RL_PIXELFORMAT_COMPRESSED_DXT1_RGBA: return "DXT1_RGBA"; break; // 4 bpp (1 bit alpha) + case RL_PIXELFORMAT_COMPRESSED_DXT3_RGBA: return "DXT3_RGBA"; break; // 8 bpp + case RL_PIXELFORMAT_COMPRESSED_DXT5_RGBA: return "DXT5_RGBA"; break; // 8 bpp + case RL_PIXELFORMAT_COMPRESSED_ETC1_RGB: return "ETC1_RGB"; break; // 4 bpp + case RL_PIXELFORMAT_COMPRESSED_ETC2_RGB: return "ETC2_RGB"; break; // 4 bpp + case RL_PIXELFORMAT_COMPRESSED_ETC2_EAC_RGBA: return "ETC2_RGBA"; break; // 8 bpp + case RL_PIXELFORMAT_COMPRESSED_PVRT_RGB: return "PVRT_RGB"; break; // 4 bpp + case RL_PIXELFORMAT_COMPRESSED_PVRT_RGBA: return "PVRT_RGBA"; break; // 4 bpp + case RL_PIXELFORMAT_COMPRESSED_ASTC_4x4_RGBA: return "ASTC_4x4_RGBA"; break; // 8 bpp + case RL_PIXELFORMAT_COMPRESSED_ASTC_8x8_RGBA: return "ASTC_8x8_RGBA"; break; // 2 bpp + default: return "UNKNOWN"; break; + } +} + +//---------------------------------------------------------------------------------- +// Module specific Functions Definition +//---------------------------------------------------------------------------------- +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) +// Load default shader (just vertex positioning and texture coloring) +// NOTE: This shader program is used for internal buffers +// NOTE: Loaded: RLGL.State.defaultShaderId, RLGL.State.defaultShaderLocs +static void rlLoadShaderDefault(void) +{ + RLGL.State.defaultShaderLocs = (int *)RL_CALLOC(RL_MAX_SHADER_LOCATIONS, sizeof(int)); + + // NOTE: All locations must be reseted to -1 (no location) + for (int i = 0; i < RL_MAX_SHADER_LOCATIONS; i++) RLGL.State.defaultShaderLocs[i] = -1; + + // Vertex shader directly defined, no external file required + const char *defaultVShaderCode = +#if defined(GRAPHICS_API_OPENGL_21) + "#version 120 \n" + "attribute vec3 vertexPosition; \n" + "attribute vec2 vertexTexCoord; \n" + "attribute vec4 vertexColor; \n" + "varying vec2 fragTexCoord; \n" + "varying vec4 fragColor; \n" +#elif defined(GRAPHICS_API_OPENGL_33) + "#version 330 \n" + "in vec3 vertexPosition; \n" + "in vec2 vertexTexCoord; \n" + "in vec4 vertexColor; \n" + "out vec2 fragTexCoord; \n" + "out vec4 fragColor; \n" +#endif + +#if defined(GRAPHICS_API_OPENGL_ES3) + "#version 300 es \n" + "precision mediump float; \n" // Precision required for OpenGL ES3 (WebGL 2) (on some browsers) + "in vec3 vertexPosition; \n" + "in vec2 vertexTexCoord; \n" + "in vec4 vertexColor; \n" + "out vec2 fragTexCoord; \n" + "out vec4 fragColor; \n" +#elif defined(GRAPHICS_API_OPENGL_ES2) + "#version 100 \n" + "precision mediump float; \n" // Precision required for OpenGL ES2 (WebGL) (on some browsers) + "attribute vec3 vertexPosition; \n" + "attribute vec2 vertexTexCoord; \n" + "attribute vec4 vertexColor; \n" + "varying vec2 fragTexCoord; \n" + "varying vec4 fragColor; \n" +#endif + + "uniform mat4 mvp; \n" + "void main() \n" + "{ \n" + " fragTexCoord = vertexTexCoord; \n" + " fragColor = vertexColor; \n" + " gl_Position = mvp*vec4(vertexPosition, 1.0); \n" + "} \n"; + + // Fragment shader directly defined, no external file required + const char *defaultFShaderCode = +#if defined(GRAPHICS_API_OPENGL_21) + "#version 120 \n" + "varying vec2 fragTexCoord; \n" + "varying vec4 fragColor; \n" + "uniform sampler2D texture0; \n" + "uniform vec4 colDiffuse; \n" + "void main() \n" + "{ \n" + " vec4 texelColor = texture2D(texture0, fragTexCoord); \n" + " gl_FragColor = texelColor*colDiffuse*fragColor; \n" + "} \n"; +#elif defined(GRAPHICS_API_OPENGL_33) + "#version 330 \n" + "in vec2 fragTexCoord; \n" + "in vec4 fragColor; \n" + "out vec4 finalColor; \n" + "uniform sampler2D texture0; \n" + "uniform vec4 colDiffuse; \n" + "void main() \n" + "{ \n" + " vec4 texelColor = texture(texture0, fragTexCoord); \n" + " finalColor = texelColor*colDiffuse*fragColor; \n" + "} \n"; +#endif + +#if defined(GRAPHICS_API_OPENGL_ES3) + "#version 300 es \n" + "precision mediump float; \n" // Precision required for OpenGL ES3 (WebGL 2) + "in vec2 fragTexCoord; \n" + "in vec4 fragColor; \n" + "out vec4 finalColor; \n" + "uniform sampler2D texture0; \n" + "uniform vec4 colDiffuse; \n" + "void main() \n" + "{ \n" + " vec4 texelColor = texture(texture0, fragTexCoord); \n" + " finalColor = texelColor*colDiffuse*fragColor; \n" + "} \n"; +#elif defined(GRAPHICS_API_OPENGL_ES2) + "#version 100 \n" + "precision mediump float; \n" // Precision required for OpenGL ES2 (WebGL) + "varying vec2 fragTexCoord; \n" + "varying vec4 fragColor; \n" + "uniform sampler2D texture0; \n" + "uniform vec4 colDiffuse; \n" + "void main() \n" + "{ \n" + " vec4 texelColor = texture2D(texture0, fragTexCoord); \n" + " gl_FragColor = texelColor*colDiffuse*fragColor; \n" + "} \n"; +#endif + + // NOTE: Compiled vertex/fragment shaders are not deleted, + // they are kept for re-use as default shaders in case some shader loading fails + RLGL.State.defaultVShaderId = rlCompileShader(defaultVShaderCode, GL_VERTEX_SHADER); // Compile default vertex shader + RLGL.State.defaultFShaderId = rlCompileShader(defaultFShaderCode, GL_FRAGMENT_SHADER); // Compile default fragment shader + + RLGL.State.defaultShaderId = rlLoadShaderProgram(RLGL.State.defaultVShaderId, RLGL.State.defaultFShaderId); + + if (RLGL.State.defaultShaderId > 0) + { + TRACELOG(RL_LOG_INFO, "SHADER: [ID %i] Default shader loaded successfully", RLGL.State.defaultShaderId); + + // Set default shader locations: attributes locations + RLGL.State.defaultShaderLocs[RL_SHADER_LOC_VERTEX_POSITION] = glGetAttribLocation(RLGL.State.defaultShaderId, RL_DEFAULT_SHADER_ATTRIB_NAME_POSITION); + RLGL.State.defaultShaderLocs[RL_SHADER_LOC_VERTEX_TEXCOORD01] = glGetAttribLocation(RLGL.State.defaultShaderId, RL_DEFAULT_SHADER_ATTRIB_NAME_TEXCOORD); + RLGL.State.defaultShaderLocs[RL_SHADER_LOC_VERTEX_COLOR] = glGetAttribLocation(RLGL.State.defaultShaderId, RL_DEFAULT_SHADER_ATTRIB_NAME_COLOR); + + // Set default shader locations: uniform locations + RLGL.State.defaultShaderLocs[RL_SHADER_LOC_MATRIX_MVP] = glGetUniformLocation(RLGL.State.defaultShaderId, RL_DEFAULT_SHADER_UNIFORM_NAME_MVP); + RLGL.State.defaultShaderLocs[RL_SHADER_LOC_COLOR_DIFFUSE] = glGetUniformLocation(RLGL.State.defaultShaderId, RL_DEFAULT_SHADER_UNIFORM_NAME_COLOR); + RLGL.State.defaultShaderLocs[RL_SHADER_LOC_MAP_DIFFUSE] = glGetUniformLocation(RLGL.State.defaultShaderId, RL_DEFAULT_SHADER_SAMPLER2D_NAME_TEXTURE0); + } + else TRACELOG(RL_LOG_WARNING, "SHADER: [ID %i] Failed to load default shader", RLGL.State.defaultShaderId); +} + +// Unload default shader +// NOTE: Unloads: RLGL.State.defaultShaderId, RLGL.State.defaultShaderLocs +static void rlUnloadShaderDefault(void) +{ + glUseProgram(0); + + glDetachShader(RLGL.State.defaultShaderId, RLGL.State.defaultVShaderId); + glDetachShader(RLGL.State.defaultShaderId, RLGL.State.defaultFShaderId); + glDeleteShader(RLGL.State.defaultVShaderId); + glDeleteShader(RLGL.State.defaultFShaderId); + + glDeleteProgram(RLGL.State.defaultShaderId); + + RL_FREE(RLGL.State.defaultShaderLocs); + + TRACELOG(RL_LOG_INFO, "SHADER: [ID %i] Default shader unloaded successfully", RLGL.State.defaultShaderId); +} + +#if defined(RLGL_SHOW_GL_DETAILS_INFO) +// Get compressed format official GL identifier name +static const char *rlGetCompressedFormatName(int format) +{ + switch (format) + { + // GL_EXT_texture_compression_s3tc + case 0x83F0: return "GL_COMPRESSED_RGB_S3TC_DXT1_EXT"; break; + case 0x83F1: return "GL_COMPRESSED_RGBA_S3TC_DXT1_EXT"; break; + case 0x83F2: return "GL_COMPRESSED_RGBA_S3TC_DXT3_EXT"; break; + case 0x83F3: return "GL_COMPRESSED_RGBA_S3TC_DXT5_EXT"; break; + // GL_3DFX_texture_compression_FXT1 + case 0x86B0: return "GL_COMPRESSED_RGB_FXT1_3DFX"; break; + case 0x86B1: return "GL_COMPRESSED_RGBA_FXT1_3DFX"; break; + // GL_IMG_texture_compression_pvrtc + case 0x8C00: return "GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG"; break; + case 0x8C01: return "GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG"; break; + case 0x8C02: return "GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG"; break; + case 0x8C03: return "GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG"; break; + // GL_OES_compressed_ETC1_RGB8_texture + case 0x8D64: return "GL_ETC1_RGB8_OES"; break; + // GL_ARB_texture_compression_rgtc + case 0x8DBB: return "GL_COMPRESSED_RED_RGTC1"; break; + case 0x8DBC: return "GL_COMPRESSED_SIGNED_RED_RGTC1"; break; + case 0x8DBD: return "GL_COMPRESSED_RG_RGTC2"; break; + case 0x8DBE: return "GL_COMPRESSED_SIGNED_RG_RGTC2"; break; + // GL_ARB_texture_compression_bptc + case 0x8E8C: return "GL_COMPRESSED_RGBA_BPTC_UNORM_ARB"; break; + case 0x8E8D: return "GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM_ARB"; break; + case 0x8E8E: return "GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT_ARB"; break; + case 0x8E8F: return "GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT_ARB"; break; + // GL_ARB_ES3_compatibility + case 0x9274: return "GL_COMPRESSED_RGB8_ETC2"; break; + case 0x9275: return "GL_COMPRESSED_SRGB8_ETC2"; break; + case 0x9276: return "GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2"; break; + case 0x9277: return "GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2"; break; + case 0x9278: return "GL_COMPRESSED_RGBA8_ETC2_EAC"; break; + case 0x9279: return "GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC"; break; + case 0x9270: return "GL_COMPRESSED_R11_EAC"; break; + case 0x9271: return "GL_COMPRESSED_SIGNED_R11_EAC"; break; + case 0x9272: return "GL_COMPRESSED_RG11_EAC"; break; + case 0x9273: return "GL_COMPRESSED_SIGNED_RG11_EAC"; break; + // GL_KHR_texture_compression_astc_hdr + case 0x93B0: return "GL_COMPRESSED_RGBA_ASTC_4x4_KHR"; break; + case 0x93B1: return "GL_COMPRESSED_RGBA_ASTC_5x4_KHR"; break; + case 0x93B2: return "GL_COMPRESSED_RGBA_ASTC_5x5_KHR"; break; + case 0x93B3: return "GL_COMPRESSED_RGBA_ASTC_6x5_KHR"; break; + case 0x93B4: return "GL_COMPRESSED_RGBA_ASTC_6x6_KHR"; break; + case 0x93B5: return "GL_COMPRESSED_RGBA_ASTC_8x5_KHR"; break; + case 0x93B6: return "GL_COMPRESSED_RGBA_ASTC_8x6_KHR"; break; + case 0x93B7: return "GL_COMPRESSED_RGBA_ASTC_8x8_KHR"; break; + case 0x93B8: return "GL_COMPRESSED_RGBA_ASTC_10x5_KHR"; break; + case 0x93B9: return "GL_COMPRESSED_RGBA_ASTC_10x6_KHR"; break; + case 0x93BA: return "GL_COMPRESSED_RGBA_ASTC_10x8_KHR"; break; + case 0x93BB: return "GL_COMPRESSED_RGBA_ASTC_10x10_KHR"; break; + case 0x93BC: return "GL_COMPRESSED_RGBA_ASTC_12x10_KHR"; break; + case 0x93BD: return "GL_COMPRESSED_RGBA_ASTC_12x12_KHR"; break; + case 0x93D0: return "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR"; break; + case 0x93D1: return "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR"; break; + case 0x93D2: return "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR"; break; + case 0x93D3: return "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR"; break; + case 0x93D4: return "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR"; break; + case 0x93D5: return "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR"; break; + case 0x93D6: return "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR"; break; + case 0x93D7: return "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR"; break; + case 0x93D8: return "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR"; break; + case 0x93D9: return "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR"; break; + case 0x93DA: return "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR"; break; + case 0x93DB: return "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR"; break; + case 0x93DC: return "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR"; break; + case 0x93DD: return "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR"; break; + default: return "GL_COMPRESSED_UNKNOWN"; break; + } +} +#endif // RLGL_SHOW_GL_DETAILS_INFO + +#endif // GRAPHICS_API_OPENGL_33 || GRAPHICS_API_OPENGL_ES2 + +// Get pixel data size in bytes (image or texture) +// NOTE: Size depends on pixel format +static int rlGetPixelDataSize(int width, int height, int format) +{ + int dataSize = 0; // Size in bytes + int bpp = 0; // Bits per pixel + + switch (format) + { + case RL_PIXELFORMAT_UNCOMPRESSED_GRAYSCALE: bpp = 8; break; + case RL_PIXELFORMAT_UNCOMPRESSED_GRAY_ALPHA: + case RL_PIXELFORMAT_UNCOMPRESSED_R5G6B5: + case RL_PIXELFORMAT_UNCOMPRESSED_R5G5B5A1: + case RL_PIXELFORMAT_UNCOMPRESSED_R4G4B4A4: bpp = 16; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R8G8B8A8: bpp = 32; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R8G8B8: bpp = 24; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R32: bpp = 32; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R32G32B32: bpp = 32*3; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R32G32B32A32: bpp = 32*4; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R16: bpp = 16; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R16G16B16: bpp = 16*3; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R16G16B16A16: bpp = 16*4; break; + case RL_PIXELFORMAT_COMPRESSED_DXT1_RGB: + case RL_PIXELFORMAT_COMPRESSED_DXT1_RGBA: + case RL_PIXELFORMAT_COMPRESSED_ETC1_RGB: + case RL_PIXELFORMAT_COMPRESSED_ETC2_RGB: + case RL_PIXELFORMAT_COMPRESSED_PVRT_RGB: + case RL_PIXELFORMAT_COMPRESSED_PVRT_RGBA: bpp = 4; break; + case RL_PIXELFORMAT_COMPRESSED_DXT3_RGBA: + case RL_PIXELFORMAT_COMPRESSED_DXT5_RGBA: + case RL_PIXELFORMAT_COMPRESSED_ETC2_EAC_RGBA: + case RL_PIXELFORMAT_COMPRESSED_ASTC_4x4_RGBA: bpp = 8; break; + case RL_PIXELFORMAT_COMPRESSED_ASTC_8x8_RGBA: bpp = 2; break; + default: break; + } + + double bytesPerPixel = (double)bpp/8.0; + dataSize = (int)(bytesPerPixel*width*height); // Total data size in bytes + + // Most compressed formats works on 4x4 blocks, + // if texture is smaller, minimum dataSize is 8 or 16 + if ((width < 4) && (height < 4)) + { + if ((format >= RL_PIXELFORMAT_COMPRESSED_DXT1_RGB) && (format < RL_PIXELFORMAT_COMPRESSED_DXT3_RGBA)) dataSize = 8; + else if ((format >= RL_PIXELFORMAT_COMPRESSED_DXT3_RGBA) && (format < RL_PIXELFORMAT_COMPRESSED_ASTC_8x8_RGBA)) dataSize = 16; + } + + return dataSize; +} + +// Auxiliar math functions + +// Get float array of matrix data +static rl_float16 rlMatrixToFloatV(Matrix mat) +{ + rl_float16 result = { 0 }; + + result.v[0] = mat.m0; + result.v[1] = mat.m1; + result.v[2] = mat.m2; + result.v[3] = mat.m3; + result.v[4] = mat.m4; + result.v[5] = mat.m5; + result.v[6] = mat.m6; + result.v[7] = mat.m7; + result.v[8] = mat.m8; + result.v[9] = mat.m9; + result.v[10] = mat.m10; + result.v[11] = mat.m11; + result.v[12] = mat.m12; + result.v[13] = mat.m13; + result.v[14] = mat.m14; + result.v[15] = mat.m15; + + return result; +} + +// Get identity matrix +static Matrix rlMatrixIdentity(void) +{ + Matrix result = { + 1.0f, 0.0f, 0.0f, 0.0f, + 0.0f, 1.0f, 0.0f, 0.0f, + 0.0f, 0.0f, 1.0f, 0.0f, + 0.0f, 0.0f, 0.0f, 1.0f + }; + + return result; +} + +// Get two matrix multiplication +// NOTE: When multiplying matrices... the order matters! +static Matrix rlMatrixMultiply(Matrix left, Matrix right) +{ + Matrix result = { 0 }; + + result.m0 = left.m0*right.m0 + left.m1*right.m4 + left.m2*right.m8 + left.m3*right.m12; + result.m1 = left.m0*right.m1 + left.m1*right.m5 + left.m2*right.m9 + left.m3*right.m13; + result.m2 = left.m0*right.m2 + left.m1*right.m6 + left.m2*right.m10 + left.m3*right.m14; + result.m3 = left.m0*right.m3 + left.m1*right.m7 + left.m2*right.m11 + left.m3*right.m15; + result.m4 = left.m4*right.m0 + left.m5*right.m4 + left.m6*right.m8 + left.m7*right.m12; + result.m5 = left.m4*right.m1 + left.m5*right.m5 + left.m6*right.m9 + left.m7*right.m13; + result.m6 = left.m4*right.m2 + left.m5*right.m6 + left.m6*right.m10 + left.m7*right.m14; + result.m7 = left.m4*right.m3 + left.m5*right.m7 + left.m6*right.m11 + left.m7*right.m15; + result.m8 = left.m8*right.m0 + left.m9*right.m4 + left.m10*right.m8 + left.m11*right.m12; + result.m9 = left.m8*right.m1 + left.m9*right.m5 + left.m10*right.m9 + left.m11*right.m13; + result.m10 = left.m8*right.m2 + left.m9*right.m6 + left.m10*right.m10 + left.m11*right.m14; + result.m11 = left.m8*right.m3 + left.m9*right.m7 + left.m10*right.m11 + left.m11*right.m15; + result.m12 = left.m12*right.m0 + left.m13*right.m4 + left.m14*right.m8 + left.m15*right.m12; + result.m13 = left.m12*right.m1 + left.m13*right.m5 + left.m14*right.m9 + left.m15*right.m13; + result.m14 = left.m12*right.m2 + left.m13*right.m6 + left.m14*right.m10 + left.m15*right.m14; + result.m15 = left.m12*right.m3 + left.m13*right.m7 + left.m14*right.m11 + left.m15*right.m15; + + return result; +} + +// Transposes provided matrix +static Matrix rlMatrixTranspose(Matrix mat) +{ + Matrix result = { 0 }; + + result.m0 = mat.m0; + result.m1 = mat.m4; + result.m2 = mat.m8; + result.m3 = mat.m12; + result.m4 = mat.m1; + result.m5 = mat.m5; + result.m6 = mat.m9; + result.m7 = mat.m13; + result.m8 = mat.m2; + result.m9 = mat.m6; + result.m10 = mat.m10; + result.m11 = mat.m14; + result.m12 = mat.m3; + result.m13 = mat.m7; + result.m14 = mat.m11; + result.m15 = mat.m15; + + return result; +} + +// Invert provided matrix +static Matrix rlMatrixInvert(Matrix mat) +{ + Matrix result = { 0 }; + + // Cache the matrix values (speed optimization) + float a00 = mat.m0, a01 = mat.m1, a02 = mat.m2, a03 = mat.m3; + float a10 = mat.m4, a11 = mat.m5, a12 = mat.m6, a13 = mat.m7; + float a20 = mat.m8, a21 = mat.m9, a22 = mat.m10, a23 = mat.m11; + float a30 = mat.m12, a31 = mat.m13, a32 = mat.m14, a33 = mat.m15; + + float b00 = a00*a11 - a01*a10; + float b01 = a00*a12 - a02*a10; + float b02 = a00*a13 - a03*a10; + float b03 = a01*a12 - a02*a11; + float b04 = a01*a13 - a03*a11; + float b05 = a02*a13 - a03*a12; + float b06 = a20*a31 - a21*a30; + float b07 = a20*a32 - a22*a30; + float b08 = a20*a33 - a23*a30; + float b09 = a21*a32 - a22*a31; + float b10 = a21*a33 - a23*a31; + float b11 = a22*a33 - a23*a32; + + // Calculate the invert determinant (inlined to avoid double-caching) + float invDet = 1.0f/(b00*b11 - b01*b10 + b02*b09 + b03*b08 - b04*b07 + b05*b06); + + result.m0 = (a11*b11 - a12*b10 + a13*b09)*invDet; + result.m1 = (-a01*b11 + a02*b10 - a03*b09)*invDet; + result.m2 = (a31*b05 - a32*b04 + a33*b03)*invDet; + result.m3 = (-a21*b05 + a22*b04 - a23*b03)*invDet; + result.m4 = (-a10*b11 + a12*b08 - a13*b07)*invDet; + result.m5 = (a00*b11 - a02*b08 + a03*b07)*invDet; + result.m6 = (-a30*b05 + a32*b02 - a33*b01)*invDet; + result.m7 = (a20*b05 - a22*b02 + a23*b01)*invDet; + result.m8 = (a10*b10 - a11*b08 + a13*b06)*invDet; + result.m9 = (-a00*b10 + a01*b08 - a03*b06)*invDet; + result.m10 = (a30*b04 - a31*b02 + a33*b00)*invDet; + result.m11 = (-a20*b04 + a21*b02 - a23*b00)*invDet; + result.m12 = (-a10*b09 + a11*b07 - a12*b06)*invDet; + result.m13 = (a00*b09 - a01*b07 + a02*b06)*invDet; + result.m14 = (-a30*b03 + a31*b01 - a32*b00)*invDet; + result.m15 = (a20*b03 - a21*b01 + a22*b00)*invDet; + + return result; +} + +#endif // RLGL_IMPLEMENTATION diff --git a/lib/libraylib.a b/lib/libraylib.a new file mode 100644 index 0000000..6e2d85c Binary files /dev/null and b/lib/libraylib.a differ diff --git a/lib/libraylib.so b/lib/libraylib.so new file mode 120000 index 0000000..6686f51 --- /dev/null +++ b/lib/libraylib.so @@ -0,0 +1 @@ +libraylib.so.550 \ No newline at end of file diff --git a/lib/libraylib.so.5.5.0 b/lib/libraylib.so.5.5.0 new file mode 100755 index 0000000..0771502 Binary files /dev/null and b/lib/libraylib.so.5.5.0 differ diff --git a/lib/libraylib.so.550 b/lib/libraylib.so.550 new file mode 120000 index 0000000..1366041 --- /dev/null +++ b/lib/libraylib.so.550 @@ -0,0 +1 @@ +libraylib.so.5.5.0 \ No newline at end of file -- cgit v1.3.1