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fix opengl renderer on older hardware

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This commit is contained in:
FunkyFr3sh 2024-09-27 18:11:07 +02:00
parent 57287686db
commit b57ec635fc
2 changed files with 15 additions and 5 deletions
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18
src/opengl_utils.c
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@ -231,20 +231,28 @@ void oglu_init()
BOOL oglu_ext_exists(char* ext, HDC hdc)
{
BOOL got_num_extensions = FALSE;
if (glGetIntegerv && glGetStringi)
{
GLint n = 0;
glGetIntegerv(GL_NUM_EXTENSIONS, &n);
for (GLint i = 0; i < n; i++)
if (glGetError() == GL_NO_ERROR)
{
char* glext = (char*)glGetStringi(GL_EXTENSIONS, i);
got_num_extensions = TRUE;
if (glext && strcmp(glext, ext) == 0)
return TRUE;
for (GLint i = 0; i < n; i++)
{
char* glext = (char*)glGetStringi(GL_EXTENSIONS, i);
if (glext && strcmp(glext, ext) == 0)
return TRUE;
}
}
}
else
if (!got_num_extensions)
{
char* glext = (char*)glGetString(GL_EXTENSIONS);

2
src/render_ogl.c
View File

@ -111,6 +111,8 @@ DWORD WINAPI ogl_render_main(void)
{
GL_CHECK(oglu_init());
g_ogl.got_error = g_ogl.got_error || (err = glGetError()) != GL_NO_ERROR;
BOOL got_swap_ctrl;
GL_CHECK(got_swap_ctrl = oglu_ext_exists("WGL_EXT_swap_control", g_ogl.hdc));