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Adding the correct mip evaluation

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This commit is contained in:
samcake 2016-04-01 01:34:33 -07:00
parent 9404846ca4
commit 582a6b7db3
1 changed files with 13 additions and 1 deletions

14
libraries/gpu/src/gpu/GLBackendTexture.cpp
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@ -49,7 +49,19 @@ void GLBackend::GLTexture::updateSize(GLuint virtualSize) {
GLint gpuSize{ 0 };
glGetTexLevelParameteriv(_target, 0, GL_TEXTURE_COMPRESSED, &gpuSize);
if (gpuSize) {
glGetTexLevelParameteriv(_target, 0, GL_TEXTURE_COMPRESSED_IMAGE_SIZE, &gpuSize);
GLint baseLevel;
GLint maxLevel;
glGetTexParameteriv(_target, GL_TEXTURE_BASE_LEVEL, &baseLevel);
glGetTexParameteriv(_target, GL_TEXTURE_MAX_LEVEL, &maxLevel);
for (GLint level = baseLevel; level < maxLevel; level++) {
GLint levelSize{ 0 };
glGetTexLevelParameteriv(_target, level, GL_TEXTURE_COMPRESSED_IMAGE_SIZE, &levelSize);
if (levelSize <= 0) {
break;
}
gpuSize += levelSize;
}
setSize(gpuSize);
} else {
setSize(virtualSize);