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LibGL+LibGPU+LibSoftGPU: Implement glCopyTex(Sub)?Image2d

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These two methods copy from the frame buffer to (part of) a texture.
This commit is contained in:
Jelle Raaijmakers 2022-09-04 20:02:37 +02:00 • committed by Linus Groh
parent d7f1dc146e
commit 44953a4301
7 changed files with 118 additions and 22 deletions
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30
Userland/Libraries/LibSoftGPU/Device.cpp
View file

@ -1466,6 +1466,21 @@ void Device::blit_from_color_buffer(Gfx::Bitmap& target)
draw_statistics_overlay(target);
}
void Device::blit_from_color_buffer(NonnullRefPtr<GPU::Image> image, u32 level, Vector2<u32> input_size, Vector2<i32> input_offset, Vector3<i32> output_offset)
{
auto input_layout = color_buffer_data_layout(input_size, input_offset);
auto const* input_data = m_frame_buffer->color_buffer()->scanline(0);
auto const& softgpu_image = reinterpret_cast<Image*>(image.ptr());
auto output_layout = softgpu_image->image_data_layout(level, output_offset);
auto* output_data = softgpu_image->texel_pointer(0, level, 0, 0, 0);
PixelConverter converter { input_layout, output_layout };
auto conversion_result = converter.convert(input_data, output_data, {});
if (conversion_result.is_error())
dbgln("Pixel conversion failed: {}", conversion_result.error().string_literal());
}
void Device::blit_from_color_buffer(void* output_data, Vector2<i32> input_offset, GPU::ImageDataLayout const& output_layout)
{
auto const& output_selection = output_layout.selection;
@ -1490,6 +1505,21 @@ void Device::blit_from_depth_buffer(void* output_data, Vector2<i32> input_offset
dbgln("Pixel conversion failed: {}", conversion_result.error().string_literal());
}
void Device::blit_from_depth_buffer(NonnullRefPtr<GPU::Image> image, u32 level, Vector2<u32> input_size, Vector2<i32> input_offset, Vector3<i32> output_offset)
{
auto input_layout = depth_buffer_data_layout(input_size, input_offset);
auto const* input_data = m_frame_buffer->depth_buffer()->scanline(0);
auto const& softgpu_image = reinterpret_cast<Image*>(image.ptr());
auto output_layout = softgpu_image->image_data_layout(level, output_offset);
auto* output_data = softgpu_image->texel_pointer(0, level, 0, 0, 0);
PixelConverter converter { input_layout, output_layout };
auto conversion_result = converter.convert(input_data, output_data, {});
if (conversion_result.is_error())
dbgln("Pixel conversion failed: {}", conversion_result.error().string_literal());
}
void Device::blit_to_color_buffer_at_raster_position(void const* input_data, GPU::ImageDataLayout const& input_layout)
{
if (!m_raster_position.valid)

2
Userland/Libraries/LibSoftGPU/Device.h
View file

@ -53,8 +53,10 @@ public:
virtual void clear_depth(GPU::DepthType) override;
virtual void clear_stencil(GPU::StencilType) override;
virtual void blit_from_color_buffer(Gfx::Bitmap& target) override;
virtual void blit_from_color_buffer(NonnullRefPtr<GPU::Image>, u32 level, Vector2<u32> input_size, Vector2<i32> input_offset, Vector3<i32> output_offset) override;
virtual void blit_from_color_buffer(void*, Vector2<i32> offset, GPU::ImageDataLayout const&) override;
virtual void blit_from_depth_buffer(void*, Vector2<i32> offset, GPU::ImageDataLayout const&) override;
virtual void blit_from_depth_buffer(NonnullRefPtr<GPU::Image>, u32 level, Vector2<u32> input_size, Vector2<i32> input_offset, Vector3<i32> output_offset) override;
virtual void blit_to_color_buffer_at_raster_position(void const*, GPU::ImageDataLayout const&) override;
virtual void blit_to_depth_buffer_at_raster_position(void const*, GPU::ImageDataLayout const&) override;
virtual void set_options(GPU::RasterizerOptions const&) override;

5
Userland/Libraries/LibSoftGPU/Image.h
View file

@ -31,6 +31,8 @@ public:
bool height_is_power_of_two() const { return m_height_is_power_of_two; }
bool depth_is_power_of_two() const { return m_depth_is_power_of_two; }
GPU::ImageDataLayout image_data_layout(u32 level, Vector3<i32> offset) const;
FloatVector4 texel(u32 layer, u32 level, int x, int y, int z) const
{
return *texel_pointer(layer, level, x, y, z);
@ -45,9 +47,6 @@ public:
virtual void read_texels(u32 layer, u32 level, Vector3<i32> const& input_offset, void* output_data, GPU::ImageDataLayout const&) const override;
virtual void copy_texels(GPU::Image const& source, u32 source_layer, u32 source_level, Vector3<u32> const& source_offset, Vector3<u32> const& size, u32 destination_layer, u32 destination_level, Vector3<u32> const& destination_offset) override;
private:
GPU::ImageDataLayout image_data_layout(u32 level, Vector3<i32> offset) const;
FloatVector4 const* texel_pointer(u32 layer, u32 level, int x, int y, int z) const
{
return m_mipmap_buffers[layer * m_num_layers + level]->buffer_pointer(x, y, z);