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opengl: Fix multiple render target setup with glDrawBuffers

This commit is contained in:
Austin Eng 2017-08-03 12:09:38 -04:00 committed by Austin Eng
parent 8dc3bd1808
commit 3a8f48504d
1 changed files with 11 additions and 4 deletions
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13
src/backend/opengl/CommandBufferGL.cpp
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@ -106,15 +106,22 @@ namespace opengl {
const auto& info = currentRenderPass->GetSubpassInfo(currentSubpass);
for (uint32_t index = 0; index < info.colorAttachments.size(); ++index) {
uint32_t attachment = info.colorAttachments[index];
std::array<GLenum, kMaxColorAttachments> drawBuffers;
drawBuffers.fill(GL_NONE);
unsigned int attachmentCount = 0;
for (unsigned int attachmentSlot : IterateBitSet(info.colorAttachmentsSet)) {
uint32_t attachment = info.colorAttachments[attachmentSlot];
auto textureView = currentFramebuffer->GetTextureView(attachment);
GLuint texture = ToBackend(textureView->GetTexture())->GetHandle();
glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER,
GL_COLOR_ATTACHMENT0 + index,
GL_COLOR_ATTACHMENT0 + attachmentSlot,
GL_TEXTURE_2D, texture, 0);
drawBuffers[attachmentSlot] = GL_COLOR_ATTACHMENT0 + attachmentSlot;
attachmentCount = attachmentSlot + 1;
}
glDrawBuffers(attachmentCount, &drawBuffers[0]);
if (info.depthStencilAttachmentSet) {
uint32_t attachment = info.depthStencilAttachment;