mirrors/raylib
1
0
Fork 0
mirror of https://github.com/raysan5/raylib.git synced 2025-09-08 12:28:15 +00:00
Code Issues Packages Projects Releases Wiki Activity

Review OpenGL ES 2.0 extensions check

Browse Source
This commit is contained in:
raysan5
2019-08-20 19:33:46 +02:00
parent bf0db83134
commit a727f5768f
1 changed files with 17 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

23
src/rlgl.h
View File

@@ -1529,24 +1529,33 @@ void rlglInit(int width, int height)
const char **extList = RL_MALLOC(sizeof(const char *)*numExt); const char **extList = RL_MALLOC(sizeof(const char *)*numExt);
// Get extensions strings // Get extensions strings
for (int i = 0; i < numExt; i++) extList[i] = (char *)glGetStringi(GL_EXTENSIONS, i); for (int i = 0; i < numExt; i++) extList[i] = (const char *)glGetStringi(GL_EXTENSIONS, i);
#elif defined(GRAPHICS_API_OPENGL_ES2) #elif defined(GRAPHICS_API_OPENGL_ES2)
// Allocate 512 strings pointers (2 KB) // Allocate 512 strings pointers (2 KB)
const char **extList = RL_MALLOC(sizeof(const char *)*512); const char **extList = RL_MALLOC(sizeof(const char *)*512);
const char *extensions = (const char *)glGetString(GL_EXTENSIONS); // One big const string
// NOTE: We have to duplicate string because glGetString() returns a const string
int len = strlen(extensions) + 1;
char *extensionsDup = (char *)RL_CALLOC(len, 1);
strcpy(extensionsDup, extensions);
// Get extensions strings extList[numExt] = extensionsDup;
char *extensions = (char *)glGetString(GL_EXTENSIONS); // One big static const string returned
int len = strlen(extensions);
for (int i = 0; i < len; i++) for (int i = 0; i < len; i++)
{ {
if (i == ' ') if (extensionsDup[i] == ' ')
{ {
extList[numExt] = &extensions[i + 1]; extensionsDup[i] = '\0';
numExt++; numExt++;
extList[numExt] = &extensionsDup[i + 1];
} }
} }
// NOTE: Duplicated string (extensionsDup) must be deallocated
#endif #endif
TraceLog(LOG_INFO, "Number of supported extensions: %i", numExt); TraceLog(LOG_INFO, "Number of supported extensions: %i", numExt);
@@ -1622,6 +1631,8 @@ void rlglInit(int width, int height)
RL_FREE(extList); RL_FREE(extList);
#if defined(GRAPHICS_API_OPENGL_ES2) #if defined(GRAPHICS_API_OPENGL_ES2)
RL_FREE(extensionsDup); // Duplicated string must be deallocated
if (vaoSupported) TraceLog(LOG_INFO, "[EXTENSION] VAO extension detected, VAO functions initialized successfully"); if (vaoSupported) TraceLog(LOG_INFO, "[EXTENSION] VAO extension detected, VAO functions initialized successfully");
else TraceLog(LOG_WARNING, "[EXTENSION] VAO extension not found, VAO usage not supported"); else TraceLog(LOG_WARNING, "[EXTENSION] VAO extension not found, VAO usage not supported");