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gl_rasterizer_cache: Implement compressed texture copies.
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@ -800,8 +800,6 @@ Surface RasterizerCacheOpenGL::RecreateSurface(const Surface& surface,
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// Verify surface is compatible for blitting
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const auto& params{surface->GetSurfaceParams()};
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ASSERT(params.type == new_params.type);
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ASSERT_MSG(params.GetCompressionFactor(params.pixel_format) == 1,
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"Compressed texture reinterpretation is not supported");
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// Create a new surface with the new parameters, and blit the previous surface to it
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Surface new_surface{std::make_shared<CachedSurface>(new_params)};
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@ -818,9 +816,13 @@ Surface RasterizerCacheOpenGL::RecreateSurface(const Surface& surface,
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glBindBuffer(GL_PIXEL_PACK_BUFFER, pbo.handle);
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glBufferData(GL_PIXEL_PACK_BUFFER, buffer_size, nullptr, GL_STREAM_DRAW_ARB);
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glGetTextureImage(surface->Texture().handle, 0, source_format.format, source_format.type,
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params.SizeInBytes(), nullptr);
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if (source_format.compressed) {
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glGetCompressedTextureImage(surface->Texture().handle, 0,
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static_cast<GLsizei>(params.SizeInBytes()), nullptr);
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} else {
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glGetTextureImage(surface->Texture().handle, 0, source_format.format, source_format.type,
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static_cast<GLsizei>(params.SizeInBytes()), nullptr);
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}
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// If the new texture is bigger than the previous one, we need to fill in the rest with data
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// from the CPU.
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if (params.SizeInBytes() < new_params.SizeInBytes()) {
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@ -846,9 +848,17 @@ Surface RasterizerCacheOpenGL::RecreateSurface(const Surface& surface,
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const auto& dest_rect{new_params.GetRect()};
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glBindBuffer(GL_PIXEL_UNPACK_BUFFER, pbo.handle);
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glTextureSubImage2D(
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new_surface->Texture().handle, 0, 0, 0, static_cast<GLsizei>(dest_rect.GetWidth()),
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static_cast<GLsizei>(dest_rect.GetHeight()), dest_format.format, dest_format.type, nullptr);
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if (dest_format.compressed) {
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glCompressedTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0,
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static_cast<GLsizei>(dest_rect.GetWidth()),
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static_cast<GLsizei>(dest_rect.GetHeight()), dest_format.format,
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static_cast<GLsizei>(new_params.SizeInBytes()), nullptr);
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} else {
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glTextureSubImage2D(new_surface->Texture().handle, 0, 0, 0,
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static_cast<GLsizei>(dest_rect.GetWidth()),
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static_cast<GLsizei>(dest_rect.GetHeight()), dest_format.format,
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dest_format.type, nullptr);
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}
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glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
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pbo.Release();
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