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LibSoftGPU: Allow binding a fragment shader

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This commit is contained in:
Stephan Unverwerth 2022-09-16 18:50:07 +02:00 • committed by Andrew Kaster
parent 93ab2db80f
commit 49139d5f4e
3 changed files with 19 additions and 0 deletions
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2
Userland/Libraries/LibGPU/Device.h
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@ -70,6 +70,8 @@ public:
virtual RasterPosition raster_position() const = 0;
virtual void set_raster_position(RasterPosition const& raster_position) = 0;
virtual void set_raster_position(FloatVector4 const& position, FloatMatrix4x4 const& model_view_transform, FloatMatrix4x4 const& projection_transform) = 0;
virtual void bind_fragment_shader(RefPtr<Shader>) = 0;
};
}

13
Userland/Libraries/LibSoftGPU/Device.cpp
View file

@ -1700,6 +1700,19 @@ void Device::set_raster_position(FloatVector4 const& position, FloatMatrix4x4 co
m_raster_position.eye_coordinate_distance = eye_coordinates.length();
}
void Device::bind_fragment_shader(RefPtr<GPU::Shader> shader)
{
VERIFY(shader.is_null() || shader->ownership_token() == this);
if (shader.is_null()) {
m_current_fragment_shader = nullptr;
return;
}
auto softgpu_shader = static_ptr_cast<Shader>(shader);
m_current_fragment_shader = softgpu_shader;
}
Gfx::IntRect Device::get_rasterization_rect_of_size(Gfx::IntSize size) const
{
// Round the X and Y floating point coordinates to the nearest integer; OpenGL 1.5 spec:

4
Userland/Libraries/LibSoftGPU/Device.h
View file

@ -35,6 +35,7 @@
#include <LibSoftGPU/Clipper.h>
#include <LibSoftGPU/Config.h>
#include <LibSoftGPU/Sampler.h>
#include <LibSoftGPU/Shader.h>
#include <LibSoftGPU/Triangle.h>
namespace SoftGPU {
@ -78,6 +79,8 @@ public:
virtual void set_raster_position(GPU::RasterPosition const& raster_position) override;
virtual void set_raster_position(FloatVector4 const& position, FloatMatrix4x4 const& model_view_transform, FloatMatrix4x4 const& projection_transform) override;
virtual void bind_fragment_shader(RefPtr<GPU::Shader>) override;
private:
void calculate_vertex_lighting(GPU::Vertex& vertex) const;
void draw_statistics_overlay(Gfx::Bitmap&);
@ -116,6 +119,7 @@ private:
Vector<FloatVector4> m_clip_planes;
Array<GPU::StencilConfiguration, 2u> m_stencil_configuration;
Array<GPU::TextureUnitConfiguration, GPU::NUM_TEXTURE_UNITS> m_texture_unit_configuration;
RefPtr<Shader> m_current_fragment_shader;
};
}