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Fixing texture unpack.

This commit is contained in:
Ben Vanik 2014-12-31 14:01:13 -08:00
parent 8a70316275
commit 764e35435d
1 changed files with 26 additions and 18 deletions
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36
src/xenia/gpu/gl4/texture_cache.cc
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@ -428,21 +428,28 @@ bool TextureCache::UploadTexture2D(GLuint texture, void* host_base,
auto allocation = scratch_buffer_->Acquire(unpack_length);
if (!texture_info.is_tiled) {
if (texture_info.size_2d.input_pitch ==
texture_info.size_2d.logical_pitch) {
// Fast path copy entire image.
TextureSwap(texture_info.endianness, allocation.host_ptr, host_base,
unpack_length);
/*const uint8_t* src = reinterpret_cast<const uint8_t*>(host_base);
} else {
// Slow path copy row-by-row because strides differ.
// UNPACK_ROW_LENGTH only works for uncompressed images, and likely does
// this exact thing under the covers, so we just always do it here.
const uint8_t* src = reinterpret_cast<const uint8_t*>(host_base);
uint8_t* dest = reinterpret_cast<uint8_t*>(allocation.host_ptr);
for (uint32_t y = 0; y < texture_info.size_2d.block_height; y++) {
for (uint32_t x = 0; x < texture_info.size_2d.logical_pitch;
x += texture_info.texel_pitch) {
TextureSwap(texture_info.endianness, dest + x, src + x,
texture_info.texel_pitch);
}
TextureSwap(texture_info.endianness, dest, src,
texture_info.size_2d.logical_pitch);
src += texture_info.size_2d.input_pitch;
dest += texture_info.size_2d.input_pitch;
}*/
// std::memcpy(dest, src, unpack_length);
dest += texture_info.size_2d.logical_pitch;
}
}
} else {
// Untile image.
// We could do this in a shader to speed things up, as this is pretty slow.
// TODO(benvanik): optimize this inner loop (or work by tiles).
uint8_t* src = reinterpret_cast<uint8_t*>(host_base);
uint8_t* dest = reinterpret_cast<uint8_t*>(allocation.host_ptr);
uint32_t output_pitch =
@ -471,11 +478,6 @@ bool TextureCache::UploadTexture2D(GLuint texture, void* host_base,
size_t unpack_offset = allocation.offset;
scratch_buffer_->Commit(std::move(allocation));
// glPixelStorei(GL_UNPACK_SWAP_BYTES, GL_TRUE);
// glPixelStorei(GL_UNPACK_ALIGNMENT, texture_info.texel_pitch);
glPixelStorei(GL_UNPACK_ROW_LENGTH, texture_info.size_2d.input_width);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, scratch_buffer_->handle());
if (texture_info.is_compressed) {
glCompressedTextureSubImage2D(texture, 0, 0, 0,
@ -484,6 +486,12 @@ bool TextureCache::UploadTexture2D(GLuint texture, void* host_base,
static_cast<GLsizei>(unpack_length),
reinterpret_cast<void*>(unpack_offset));
} else {
// Most of these don't seem to have an effect on compressed images.
// glPixelStorei(GL_UNPACK_SWAP_BYTES, GL_TRUE);
// glPixelStorei(GL_UNPACK_ALIGNMENT, texture_info.texel_pitch);
// glPixelStorei(GL_UNPACK_ROW_LENGTH, texture_info.size_2d.input_width);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
glTextureSubImage2D(texture, 0, 0, 0, texture_info.size_2d.output_width,
texture_info.size_2d.output_height, format, type,
reinterpret_cast<void*>(unpack_offset));