RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-27 00:27:45 +00:00
Code Issues Activity Actions

LibGL+LibGPU+LibSoftGPU: Implement matrix stack per texture unit

Browse source 
Each texture unit now has its own texture transformation matrix stack.
Introduce a new texture unit configuration that is synced when changed.
Because we're no longer passing a silly `Vector` when drawing each
primitive, this results in a slightly improved frames per second :^)
This commit is contained in:
Jelle Raaijmakers 2022-09-05 00:40:27 +02:00 • committed by Linus Groh
parent 1540c56e6c
commit 00d46e5d77
22 changed files with 208 additions and 152 deletions
Download patch file Download diff file Expand all files Collapse all files

27
Userland/Libraries/LibGL/GLContext.h
View file

@ -217,7 +217,7 @@ public:
private:
void sync_device_config();
void sync_device_sampler_config();
void sync_device_texcoord_config();
void sync_device_texture_units();
void sync_light_state();
void sync_stencil_configuration();
void sync_clip_planes();
@ -256,16 +256,22 @@ private:
GLenum m_current_draw_mode;
GLenum m_current_matrix_mode { GL_MODELVIEW };
FloatMatrix4x4 m_projection_matrix { FloatMatrix4x4::identity() };
FloatMatrix4x4 m_model_view_matrix { FloatMatrix4x4::identity() };
FloatMatrix4x4 m_texture_matrix { FloatMatrix4x4::identity() };
FloatMatrix4x4* m_current_matrix { &m_model_view_matrix };
Vector<FloatMatrix4x4> m_projection_matrix_stack;
Vector<FloatMatrix4x4> m_model_view_matrix_stack;
// FIXME: implement multi-texturing: the texture matrix stack should live inside a texture unit
Vector<FloatMatrix4x4> m_texture_matrix_stack;
FloatMatrix4x4& projection_matrix() { return m_projection_matrix_stack.last(); }
FloatMatrix4x4& model_view_matrix() { return m_model_view_matrix_stack.last(); }
Vector<FloatMatrix4x4> m_projection_matrix_stack { FloatMatrix4x4::identity() };
Vector<FloatMatrix4x4> m_model_view_matrix_stack { FloatMatrix4x4::identity() };
Vector<FloatMatrix4x4>* m_current_matrix_stack { &m_model_view_matrix_stack };
FloatMatrix4x4* m_current_matrix { &m_current_matrix_stack->last() };
ALWAYS_INLINE void update_current_matrix(FloatMatrix4x4 const& new_matrix)
{
*m_current_matrix = new_matrix;
if (m_current_matrix_mode == GL_TEXTURE)
m_texture_units_dirty = true;
}
Gfx::IntRect m_viewport;
@ -353,6 +359,7 @@ private:
Vector<TextureUnit> m_texture_units;
TextureUnit* m_active_texture_unit;
size_t m_active_texture_unit_index { 0 };
bool m_texture_units_dirty { true };
// Texture coordinate generation state
struct TextureCoordinateGeneration {
@ -362,8 +369,6 @@ private:
FloatVector4 eye_plane_coefficients { 0.0f, 0.0f, 0.0f, 0.0f };
};
Vector<Array<TextureCoordinateGeneration, 4>> m_texture_coordinate_generation;
bool m_texcoord_generation_dirty { true };
ALWAYS_INLINE TextureCoordinateGeneration& texture_coordinate_generation(size_t texture_unit, GLenum capability)
{
return m_texture_coordinate_generation[texture_unit][capability - GL_TEXTURE_GEN_S];