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Debugging without understanding...

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This commit is contained in:
Sam Cake 2017-05-01 13:50:19 -07:00
parent ae5cd3059a
commit 3abd9f21e8
2 changed files with 42 additions and 9 deletions
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4
libraries/gl/src/gl/Context.cpp
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@ -307,12 +307,12 @@ void Context::create() {
qApp->setProperty(hifi::properties::gl::PRIMARY_CONTEXT, QVariant::fromValue((void*)PRIMARY));
}
if (enableDebugLogger) {
// if (enableDebugLogger) {
makeCurrent();
glDebugMessageCallback(debugMessageCallback, NULL);
glEnable(GL_DEBUG_OUTPUT_SYNCHRONOUS_ARB);
doneCurrent();
}
// }
}
#endif

47
libraries/gpu-gl/src/gpu/gl41/GL41BackendTexture.cpp
View file

@ -309,6 +309,30 @@ void GL41VariableAllocationTexture::syncSampler() const {
}
void copyUncompressedTexGPUMem(const gpu::Texture& texture, GLenum texTarget, GLuint srcId, GLuint destId, uint16_t numMips, uint16_t srcAllocatedMip, uint16_t destAllocatedMip, uint16_t populatedMips) {
GLuint fbo { 0 };
glGenFramebuffers(1, &fbo);
glBindFramebuffer(GL_READ_FRAMEBUFFER, fbo);
uint16_t mips = numMips;
// copy pre-existing mips
for (uint16_t mip = populatedMips; mip < mips; ++mip) {
auto mipDimensions = texture.evalMipDimensions(mip);
uint16_t targetMip = mip - destAllocatedMip;
uint16_t sourceMip = mip - srcAllocatedMip;
for (GLenum target : GLTexture::getFaceTargets(texTarget)) {
glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, target, srcId, sourceMip);
(void)CHECK_GL_ERROR();
glCopyTexSubImage2D(target, targetMip, 0, 0, 0, 0, mipDimensions.x, mipDimensions.y);
(void)CHECK_GL_ERROR();
}
}
// destroy the transfer framebuffer
glBindFramebuffer(GL_READ_FRAMEBUFFER, 0);
glDeleteFramebuffers(1, &fbo);
}
void copyCompressedTexGPUMem(GLenum texTarget, GLuint srcId, GLuint destId, uint16_t numMips, uint16_t srcAllocatedMip, uint16_t destAllocatedMip, uint16_t populatedMips) {
GLuint pbo { 0 };
glGenBuffers(1, &pbo);
@ -347,12 +371,14 @@ void copyCompressedTexGPUMem(GLenum texTarget, GLuint srcId, GLuint destId, uint
sourceMip._size = (GLint)faceTargets.size() * sourceMip._faceSize;
sourceMip._offset = bufferOffset;
bufferOffset += sourceMip._size;
gpu::gl::checkGLError();
}
(void)CHECK_GL_ERROR();
// Allocate the PBO to accomodate for all the mips to copy
glBufferData(GL_PIXEL_PACK_BUFFER, bufferOffset, nullptr, GL_STREAM_COPY);
(void)CHECK_GL_ERROR();
gpu::gl::checkGLError();
// Transfer from source texture to pbo
for (uint16_t mip = populatedMips; mip < numMips; ++mip) {
@ -364,6 +390,7 @@ void copyCompressedTexGPUMem(GLenum texTarget, GLuint srcId, GLuint destId, uint
glGetCompressedTexImage(faceTargets[f], sourceLevel, (void*)(sourceMip._offset + f * sourceMip._faceSize));
}
(void)CHECK_GL_ERROR();
gpu::gl::checkGLError();
}
// Now populate the new texture from the pbo
@ -380,8 +407,9 @@ void copyCompressedTexGPUMem(GLenum texTarget, GLuint srcId, GLuint destId, uint
uint16_t destLevel = mip - destAllocatedMip;
for (GLint f = 0; f < faceTargets.size(); f++) {
glCompressedTexImage2D(faceTargets[f], destLevel, internalFormat, sourceMip._width, sourceMip._height, 0,
glCompressedTexSubImage2D(faceTargets[f], destLevel,0, 0, sourceMip._width, sourceMip._height, internalFormat,
sourceMip._faceSize, (void*)(sourceMip._offset + f * sourceMip._faceSize));
gpu::gl::checkGLError();
}
}
@ -405,6 +433,8 @@ void GL41VariableAllocationTexture::promote() {
// allocate storage for new level
allocateStorage(targetAllocatedMip);
uint16_t numMips = _gpuObject.getNumMips();
if (_texelFormat.isCompressed()) {
#if defined(USE_45IMAGECOPY_PROMOTE)
withPreservedTexture([&] {
@ -427,7 +457,6 @@ void GL41VariableAllocationTexture::promote() {
syncSampler();
});
#else
uint16_t numMips = _gpuObject.getNumMips();
withPreservedTexture([&] {
copyCompressedTexGPUMem(_target, oldId, _id, numMips, oldAllocatedMip, _allocatedMip, _populatedMip);
syncSampler();
@ -435,7 +464,8 @@ void GL41VariableAllocationTexture::promote() {
#endif
} else {
withPreservedTexture([&] {
GLuint fbo { 0 };
copyUncompressedTexGPUMem(_gpuObject, _target, oldId, _id, numMips, oldAllocatedMip, _allocatedMip, _populatedMip);
/* GLuint fbo { 0 };
glGenFramebuffers(1, &fbo);
glBindFramebuffer(GL_READ_FRAMEBUFFER, fbo);
@ -456,7 +486,7 @@ void GL41VariableAllocationTexture::promote() {
// destroy the transfer framebuffer
glBindFramebuffer(GL_READ_FRAMEBUFFER, 0);
glDeleteFramebuffers(1, &fbo);
*/
syncSampler();
});
}
@ -478,6 +508,8 @@ void GL41VariableAllocationTexture::demote() {
allocateStorage(_allocatedMip + 1);
_populatedMip = std::max(_populatedMip, _allocatedMip);
uint16_t numMips = _gpuObject.getNumMips();
if (_texelFormat.isCompressed()) {
#if defined(USE_45IMAGECOPY_DEMOTE)
withPreservedTexture([&] {
@ -500,7 +532,6 @@ void GL41VariableAllocationTexture::demote() {
syncSampler();
});
#else
uint16_t numMips = _gpuObject.getNumMips();
withPreservedTexture([&] {
copyCompressedTexGPUMem(_target, oldId, _id, numMips, oldAllocatedMip, _allocatedMip, _populatedMip);
syncSampler();
@ -508,7 +539,9 @@ void GL41VariableAllocationTexture::demote() {
#endif
} else {
withPreservedTexture([&] {
GLuint fbo { 0 };
copyUncompressedTexGPUMem(_gpuObject, _target, oldId, _id, numMips, oldAllocatedMip, _allocatedMip, _populatedMip);
/* GLuint fbo { 0 };
glGenFramebuffers(1, &fbo);
glBindFramebuffer(GL_READ_FRAMEBUFFER, fbo);
@ -529,7 +562,7 @@ void GL41VariableAllocationTexture::demote() {
// destroy the transfer framebuffer
glBindFramebuffer(GL_READ_FRAMEBUFFER, 0);
glDeleteFramebuffers(1, &fbo);
*/
syncSampler();
});
}