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check gsg capabilities a little better

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This commit is contained in:
David Rose 2005-07-22 13:35:09 +00:00
parent 9ec064c400
commit 630558c993
2 changed files with 34 additions and 5 deletions
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4
panda/src/display/graphicsOutput.cxx
View File

@ -634,8 +634,10 @@ make_cube_map(const string &name, int size, bool to_ram,
// irrelevant.)
GraphicsStateGuardian *gsg = get_gsg();
int max_dimension = gsg->get_max_cube_map_dimension();
if (max_dimension == 0) {
if (max_dimension == 0 || !gsg->get_supports_cube_map()) {
// The GSG doesn't support cube mapping; too bad for you.
display_cat.warning()
<< "Cannot make dynamic cube map; GSG does not support cube maps.\n";
return NULL;
}
if (max_dimension > 0) {

35
panda/src/glstuff/glGraphicsStateGuardian_src.cxx
View File

@ -1694,6 +1694,28 @@ end_draw_primitives() {
////////////////////////////////////////////////////////////////////
TextureContext *CLP(GraphicsStateGuardian)::
prepare_texture(Texture *tex) {
// Make sure we'll support this texture when it's rendered. Don't
// bother to prepare it if we won't.
switch (tex->get_texture_type()) {
case Texture::TT_3d_texture:
if (!_supports_3d_texture) {
GLCAT.warning()
<< "3-D textures are not supported by this OpenGL driver.\n";
return NULL;
}
break;
case Texture::TT_cube_map:
if (!_supports_cube_map) {
GLCAT.warning()
<< "Cube map textures are not supported by this OpenGL driver.\n";
return NULL;
}
default:
break;
}
CLP(TextureContext) *gtc = new CLP(TextureContext)(tex);
GLP(GenTextures)(1, &gtc->_index);
report_my_gl_errors();
@ -2215,7 +2237,8 @@ framebuffer_copy_to_ram(Texture *tex, int z, const DisplayRegion *dr,
tex->get_format() != format ||
tex->get_texture_type() != texture_type) {
// Re-setup the texture; its properties have changed.
tex->setup_texture(texture_type, w, h, 1, component_type, format);
tex->setup_texture(texture_type, w, h, tex->get_z_size(),
component_type, format);
}
GLenum external_format = get_external_image_format(format);
@ -4560,8 +4583,6 @@ do_issue_texture() {
// Stage i has changed. Issue the texture on this stage.
_glActiveTexture(GL_TEXTURE0 + i);
GLenum target = get_texture_target(texture->get_texture_type());
// First, turn off the previous texture mode.
GLP(Disable)(GL_TEXTURE_1D);
GLP(Disable)(GL_TEXTURE_2D);
@ -4572,14 +4593,20 @@ do_issue_texture() {
GLP(Disable)(GL_TEXTURE_CUBE_MAP);
}
TextureContext *tc = texture->prepare_now(_prepared_objects, this);
if (tc == (TextureContext *)NULL) {
// Something wrong with this texture; skip it.
break;
}
// Then, turn on the current texture mode.
GLenum target = get_texture_target(texture->get_texture_type());
if (target == GL_NONE) {
// Unsupported texture mode.
break;
}
GLP(Enable)(target);
TextureContext *tc = texture->prepare_now(_prepared_objects, this);
apply_texture(tc);
if (stage->involves_color_scale() && _color_scale_enabled) {