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fix opengl renderer on older hardware

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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 oglu_ext_exists(char* ext, HDC hdc)
{ {
BOOL got_num_extensions = FALSE;
if (glGetIntegerv && glGetStringi) if (glGetIntegerv && glGetStringi)
{ {
GLint n = 0; GLint n = 0;
glGetIntegerv(GL_NUM_EXTENSIONS, &n); 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) for (GLint i = 0; i < n; i++)
return TRUE; {
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); 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()); GL_CHECK(oglu_init());
g_ogl.got_error = g_ogl.got_error || (err = glGetError()) != GL_NO_ERROR;
BOOL got_swap_ctrl; BOOL got_swap_ctrl;
GL_CHECK(got_swap_ctrl = oglu_ext_exists("WGL_EXT_swap_control", g_ogl.hdc)); GL_CHECK(got_swap_ctrl = oglu_ext_exists("WGL_EXT_swap_control", g_ogl.hdc));