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Allow GL_ARB_texture_non_power_of_two environment variable to override OpenGL 2.0 check
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parent
1b7669374e
commit
b064ad6ac5
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@ -1726,8 +1726,8 @@ GL_CreateRenderer(SDL_Window * window, Uint32 flags)
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Uint32 window_flags;
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int profile_mask = 0, major = 0, minor = 0;
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SDL_bool changed_window = SDL_FALSE;
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SDL_bool isGL2 = SDL_FALSE;
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const char *verstr = NULL;
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const char *hint;
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SDL_bool non_power_of_two_supported = SDL_FALSE;
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SDL_GL_GetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, &profile_mask);
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SDL_GL_GetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, &major);
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@ -1847,22 +1847,29 @@ GL_CreateRenderer(SDL_Window * window, Uint32 flags)
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data->glEnable(GL_DEBUG_OUTPUT_SYNCHRONOUS_ARB);
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}
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verstr = (const char *) data->glGetString(GL_VERSION);
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if (verstr) {
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char verbuf[16];
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char *ptr;
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SDL_strlcpy(verbuf, verstr, sizeof (verbuf));
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ptr = SDL_strchr(verbuf, '.');
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if (ptr) {
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*ptr = '\0';
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if (SDL_atoi(verbuf) >= 2) {
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isGL2 = SDL_TRUE;
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hint = SDL_getenv("GL_ARB_texture_non_power_of_two");
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if (!hint || *hint != '0') {
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SDL_bool isGL2 = SDL_FALSE;
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const char *verstr = (const char *)data->glGetString(GL_VERSION);
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if (verstr) {
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char verbuf[16];
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char *ptr;
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SDL_strlcpy(verbuf, verstr, sizeof (verbuf));
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ptr = SDL_strchr(verbuf, '.');
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if (ptr) {
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*ptr = '\0';
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if (SDL_atoi(verbuf) >= 2) {
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isGL2 = SDL_TRUE;
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}
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}
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}
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if (isGL2 || SDL_GL_ExtensionSupported("GL_ARB_texture_non_power_of_two")) {
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non_power_of_two_supported = SDL_TRUE;
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}
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}
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data->textype = GL_TEXTURE_2D;
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if (isGL2 || SDL_GL_ExtensionSupported("GL_ARB_texture_non_power_of_two")) {
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if (non_power_of_two_supported) {
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data->GL_ARB_texture_non_power_of_two_supported = SDL_TRUE;
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data->glGetIntegerv(GL_MAX_TEXTURE_SIZE, &value);
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renderer->info.max_texture_width = value;
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