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gl_rasterizer_cache: Implement compressed texture copies.

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This commit is contained in:
bunnei
2018-08-21 01:04:46 -04:00
parent bce9aafd10
commit 537376dbd4
1 changed files with 32 additions and 8 deletions
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40
src/video_core/renderer_opengl/gl_rasterizer_cache.cpp
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@@ -783,8 +783,6 @@ Surface RasterizerCacheOpenGL::RecreateSurface(const Surface& surface,
// Verify surface is compatible for blitting
const auto& params{surface->GetSurfaceParams()};
ASSERT(params.type == new_params.type);
ASSERT_MSG(params.GetCompressionFactor(params.pixel_format) == 1,
"Compressed texture reinterpretation is not supported");
// Create a new surface with the new parameters, and blit the previous surface to it
Surface new_surface{std::make_shared<CachedSurface>(new_params)};
@@ -801,9 +799,12 @@ Surface RasterizerCacheOpenGL::RecreateSurface(const Surface& surface,
glBindBuffer(GL_PIXEL_PACK_BUFFER, pbo.handle);
glBufferData(GL_PIXEL_PACK_BUFFER, buffer_size, nullptr, GL_STREAM_DRAW_ARB);
glGetTextureImage(surface->Texture().handle, 0, source_format.format, source_format.type,
params.SizeInBytes(), nullptr);
if (source_format.compressed) {
glGetCompressedTextureImage(surface->Texture().handle, 0, params.SizeInBytes(), nullptr);
} else {
glGetTextureImage(surface->Texture().handle, 0, source_format.format, source_format.type,
params.SizeInBytes(), nullptr);
}
// If the new texture is bigger than the previous one, we need to fill in the rest with data
// from the CPU.
if (params.SizeInBytes() < new_params.SizeInBytes()) {
@@ -827,9 +828,32 @@ Surface RasterizerCacheOpenGL::RecreateSurface(const Surface& surface,
const auto& dest_rect{new_params.GetRect()};
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, pbo.handle);
glTextureSubImage2D(
new_surface->Texture().handle, 0, 0, 0, static_cast<GLsizei>(dest_rect.GetWidth()),
static_cast<GLsizei>(dest_rect.GetHeight()), dest_format.format, dest_format.type, nullptr);
if (dest_format.compressed) {
OpenGLState cur_state = OpenGLState::GetCurState();
GLuint old_tex = cur_state.texture_units[0].texture_2d;
cur_state.texture_units[0].texture_2d = new_surface->Texture().handle;
cur_state.Apply();
// Ensure no bad interactions with GL_UNPACK_ALIGNMENT
ASSERT(new_params.width * CachedSurface::GetGLBytesPerPixel(new_params.pixel_format) % 4 ==
0);
glPixelStorei(GL_UNPACK_ROW_LENGTH, static_cast<GLint>(params.width));
glActiveTexture(GL_TEXTURE0);
glCompressedTexImage2D(GL_TEXTURE_2D, 0, dest_format.internal_format,
static_cast<GLsizei>(dest_rect.GetWidth()),
static_cast<GLsizei>(dest_rect.GetHeight()), 0,
static_cast<GLsizei>(new_params.SizeInBytes()), nullptr);
glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
cur_state.texture_units[0].texture_2d = old_tex;
cur_state.Apply();
} else {
glTextureSubImage2D(new_surface->Texture().handle, 0, 0, 0,
static_cast<GLsizei>(dest_rect.GetWidth()),
static_cast<GLsizei>(dest_rect.GetHeight()), dest_format.format,
dest_format.type, nullptr);
}
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
pbo.Release();