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Make sure we initialize texture 0. We don't actually use it yet

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(binding zero disables texturing) but I believe the spec says that
texture 0 is the "default texture" and is an actual texture object.
This commit is contained in:
Luke Benstead 2023-05-17 20:36:59 +01:00
parent a5891056db
commit 52a0215ed8
1 changed files with 26 additions and 22 deletions
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48
GL/texture.c
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@ -451,6 +451,29 @@ void _glResetSharedPalettes()
memset((void*) SUBBANKS_USED, 0x0, sizeof(SUBBANKS_USED));
}
static void _glInitializeTextureObject(TextureObject* txr, unsigned int id) {
txr->index = id;
txr->width = txr->height = 0;
txr->mipmap = 0;
txr->uv_clamp = 0;
txr->env = GPU_TXRENV_MODULATEALPHA;
txr->data = NULL;
txr->mipmapCount = 0;
txr->minFilter = GL_NEAREST;
txr->magFilter = GL_NEAREST;
txr->palette = NULL;
txr->isCompressed = GL_FALSE;
txr->isPaletted = GL_FALSE;
txr->mipmap_bias = GL_KOS_INTERNAL_DEFAULT_MIPMAP_LOD_BIAS;
/* Not mipmapped by default */
txr->baseDataOffset = 0;
/* Always default to the first shared bank */
txr->shared_bank = 0;
}
GLubyte _glInitTextures() {
uint32_t i;
@ -460,6 +483,9 @@ GLubyte _glInitTextures() {
// Reserve zero so that it is never given to anyone as an ID!
named_array_reserve(&TEXTURE_OBJECTS, 0);
// Initialize zero as an actual texture object though because apparently it is!
_glInitializeTextureObject((TextureObject*) named_array_get(&TEXTURE_OBJECTS, 0), 0);
for (i=0; i < MAX_GLDC_SHARED_PALETTES;i++){
SHARED_PALETTES[i] = _initTexturePalette();
}
@ -509,28 +535,6 @@ GLboolean APIENTRY glIsTexture(GLuint texture) {
return (named_array_used(&TEXTURE_OBJECTS, texture)) ? GL_TRUE : GL_FALSE;
}
static void _glInitializeTextureObject(TextureObject* txr, unsigned int id) {
txr->index = id;
txr->width = txr->height = 0;
txr->mipmap = 0;
txr->uv_clamp = 0;
txr->env = GPU_TXRENV_MODULATEALPHA;
txr->data = NULL;
txr->mipmapCount = 0;
txr->minFilter = GL_NEAREST;
txr->magFilter = GL_NEAREST;
txr->palette = NULL;
txr->isCompressed = GL_FALSE;
txr->isPaletted = GL_FALSE;
txr->mipmap_bias = GL_KOS_INTERNAL_DEFAULT_MIPMAP_LOD_BIAS;
/* Not mipmapped by default */
txr->baseDataOffset = 0;
/* Always default to the first shared bank */
txr->shared_bank = 0;
}
void APIENTRY glGenTextures(GLsizei n, GLuint *textures) {
TRACE();