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Only call glUniformMatrix4fv if needed

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This commit is contained in:
Logan McNaughton 2016-09-27 08:56:36 -06:00 committed by GitHub
parent ef99754632
commit 0d3e9875b1
1 changed files with 7 additions and 3 deletions
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10
gfx/drivers_shader/shader_glsl.c
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@ -1256,6 +1256,7 @@ static void gl_glsl_set_params(void *data, void *shader_data,
static bool gl_glsl_set_mvp(void *data, void *shader_data, const math_matrix_4x4 *mat)
{
static unsigned current_idx;
int loc;
glsl_shader_data_t *glsl = (glsl_shader_data_t*)shader_data;
@ -1265,9 +1266,12 @@ static bool gl_glsl_set_mvp(void *data, void *shader_data, const math_matrix_4x4
goto fallback;
loc = glsl->uniforms[glsl->active_idx].mvp;
if (loc >= 0)
glUniformMatrix4fv(loc, 1, GL_FALSE, mat->data);
if (loc >= 0) {
if (current_idx != glsl->active_idx) {
glUniformMatrix4fv(loc, 1, GL_FALSE, mat->data);
current_idx = glsl->active_idx;
}
}
return true;
fallback: