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opengl: If GL version >= 2.0, NPOT textures are supported, so favor them. 

Fixes #5041.
main
Ryan C. Gordon 2022-02-22 10:54:21 -05:00
parent 9299a3e796
commit 293a0aa80e
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GPG Key ID: FA148B892AB48044
1 changed files with 20 additions and 3 deletions
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23
src/render/opengl/SDL_render_gl.c
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@ -1700,6 +1700,8 @@ GL_CreateRenderer(SDL_Window * window, Uint32 flags)
Uint32 window_flags;
int profile_mask = 0, major = 0, minor = 0;
SDL_bool changed_window = SDL_FALSE;
SDL_bool isGL2 = SDL_FALSE;
const char *verstr = NULL;
SDL_GL_GetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, &profile_mask);
SDL_GL_GetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, &major);
@ -1815,15 +1817,30 @@ GL_CreateRenderer(SDL_Window * window, Uint32 flags)
data->glEnable(GL_DEBUG_OUTPUT_SYNCHRONOUS_ARB);
}
verstr = (const char *) data->glGetString(GL_VERSION);
if (verstr) {
char verbuf[16];
char *ptr;
SDL_strlcpy(verbuf, verstr, sizeof (verbuf));
ptr = SDL_strchr(verbuf, '.');
if (ptr) {
*ptr = '\0';
if (SDL_atoi(verbuf) >= 2) {
isGL2 = SDL_TRUE;
}
}
}
data->textype = GL_TEXTURE_2D;
if (SDL_GL_ExtensionSupported("GL_ARB_texture_non_power_of_two")) {
if (isGL2 || SDL_GL_ExtensionSupported("GL_ARB_texture_non_power_of_two")) {
data->GL_ARB_texture_non_power_of_two_supported = SDL_TRUE;
data->glGetIntegerv(GL_MAX_TEXTURE_SIZE, &value);
renderer->info.max_texture_width = value;
renderer->info.max_texture_height = value;
} else if (SDL_GL_ExtensionSupported("GL_ARB_texture_rectangle") ||
SDL_GL_ExtensionSupported("GL_EXT_texture_rectangle")) {
data->GL_ARB_texture_rectangle_supported = SDL_TRUE;
data->textype = GL_TEXTURE_RECTANGLE_ARB;
}
if (data->GL_ARB_texture_rectangle_supported) {
data->glGetIntegerv(GL_MAX_RECTANGLE_TEXTURE_SIZE_ARB, &value);
renderer->info.max_texture_width = value;
renderer->info.max_texture_height = value;