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Fixed a bug when trying to use windows sofware renderer

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This commit is contained in:
Josh Yelon 2008-02-26 05:50:48 +00:00
parent 4ada6f355d
commit 172f8f7386
1 changed files with 24 additions and 14 deletions
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38
panda/src/glstuff/glGraphicsStateGuardian_src.cxx
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@ -2763,8 +2763,10 @@ extract_texture_data(Texture *tex) {
// Also get the mipmap levels.
GLint num_expected_levels = tex->get_expected_num_mipmap_levels();
GLint highest_level = num_expected_levels;
GLP(GetTexParameteriv)(target, GL_TEXTURE_MAX_LEVEL, &highest_level);
highest_level = min(highest_level, num_expected_levels);
if (is_at_least_version(1, 2)) {
GLP(GetTexParameteriv)(target, GL_TEXTURE_MAX_LEVEL, &highest_level);
highest_level = min(highest_level, num_expected_levels);
}
for (int n = 1; n <= highest_level; ++n) {
if (!extract_texture_image(image, page_size, tex, target, page_target,
type, compression, n)) {
@ -7114,6 +7116,7 @@ upload_texture_image(CLP(TextureContext) *gtc,
}
int highest_level = 0;
report_my_gl_errors();
if (!gtc->_already_applied ||
@ -7210,6 +7213,7 @@ upload_texture_image(CLP(TextureContext) *gtc,
highest_level = n;
}
report_my_gl_errors();
} else {
// We can reload the image over the previous image, possibly
// saving on texture memory fragmentation.
@ -7288,21 +7292,27 @@ upload_texture_image(CLP(TextureContext) *gtc,
highest_level = n;
}
report_my_gl_errors();
}
if (load_ram_mipmaps) {
// By the time we get here, we have successfully loaded a certain
// number of mipmap levels. Tell the GL that's all it's going to
// get.
GLP(TexParameteri)(texture_target, GL_TEXTURE_MAX_LEVEL, highest_level - mipmap_bias);
} else if (uses_mipmaps) {
// Since the mipmap levels were auto-generated and are therefore
// complete, make sure the GL doesn't remember some previous value
// for GL_TEXTURE_MAX_LEVEL from the above call--set it to the
// full count of mipmap levels.
GLP(TexParameteri)(texture_target, GL_TEXTURE_MAX_LEVEL, tex->get_expected_num_mipmap_levels() - mipmap_bias - 1);
report_my_gl_errors();
if (is_at_least_version(1, 2)) {
if (load_ram_mipmaps) {
// By the time we get here, we have successfully loaded a certain
// number of mipmap levels. Tell the GL that's all it's going to
// get.
cerr << " 1 texture_target=" << texture_target << " hi level = " << highest_level << " mip bias = " << mipmap_bias << "\n";
GLP(TexParameteri)(texture_target, GL_TEXTURE_MAX_LEVEL, highest_level - mipmap_bias);
} else if (uses_mipmaps) {
// Since the mipmap levels were auto-generated and are therefore
// complete, make sure the GL doesn't remember some previous value
// for GL_TEXTURE_MAX_LEVEL from the above call--set it to the
// full count of mipmap levels.
GLP(TexParameteri)(texture_target, GL_TEXTURE_MAX_LEVEL, tex->get_expected_num_mipmap_levels() - mipmap_bias - 1);
}
}
report_my_gl_errors();
// Report the error message explicitly if the GL texture creation
// failed.