encounter/dawn-cmake
1
0
Fork 0
mirror of https://github.com/encounter/dawn-cmake.git synced 2025-12-14 07:36:15 +00:00
Code Issues Packages Projects Releases Wiki Activity

Implement backend texture->buffer and buffer->texture copies with row pitch

Browse Source
This commit is contained in:
Austin Eng
2017-07-13 15:28:58 -04:00
committed by Austin Eng
parent 51ff013ee2
commit 33560ef015
3 changed files with 14 additions and 19 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
src/backend/opengl/CommandBufferGL.cpp
View File

@@ -181,9 +181,11 @@ namespace opengl {
glBindTexture(target, texture->GetHandle());
ASSERT(texture->GetDimension() == nxt::TextureDimension::e2D);
glPixelStorei(GL_UNPACK_ROW_LENGTH, copy->rowPitch / static_cast<uint32_t>(TextureFormatPixelSize(texture->GetFormat())));
glTexSubImage2D(target, dst.level, dst.x, dst.y, dst.width, dst.height,
format.format, format.type,
reinterpret_cast<void*>(static_cast<uintptr_t>(src.offset)));
glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
}
break;
@@ -210,9 +212,11 @@ namespace opengl {
texture->GetHandle(), src.level);
glBindBuffer(GL_PIXEL_PACK_BUFFER, buffer->GetHandle());
glPixelStorei(GL_PACK_ROW_LENGTH, copy->rowPitch / static_cast<uint32_t>(TextureFormatPixelSize(texture->GetFormat())));
ASSERT(src.depth == 1 && src.z == 0);
void* offset = reinterpret_cast<void*>(static_cast<uintptr_t>(dst.offset));
glReadPixels(src.x, src.y, src.width, src.height, format.format, format.type, offset);
glPixelStorei(GL_PACK_ROW_LENGTH, 0);
glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
glDeleteFramebuffers(1, &readFBO);