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LibSoftGPU: Make input in PixelQuad generic

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Previously we would store vertex color and texture coordinates in
separate fields in PixelQuad. To make them accessible from shaders we
need to store them as a completely generic array of floats.
This commit is contained in:
Stephan Unverwerth 2022-09-17 12:38:57 +02:00 • committed by Andrew Kaster
parent 49139d5f4e
commit c008b6ce18
3 changed files with 45 additions and 14 deletions
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8
Userland/Libraries/LibSoftGPU/Config.h
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@ -24,6 +24,14 @@ static constexpr int MAX_TEXTURE_SIZE = 2048;
static constexpr float MAX_TEXTURE_LOD_BIAS = 2.f;
static constexpr int SUBPIXEL_BITS = 4;
static constexpr int NUM_SHADER_INPUTS = 64;
// Verify that we have enough inputs to hold vertex color and texture coordinates for all fixed function texture units
static_assert(NUM_SHADER_INPUTS >= 4 + GPU::NUM_TEXTURE_UNITS * 4);
static constexpr int SHADER_INPUT_VERTEX_COLOR = 0;
static constexpr int SHADER_INPUT_FIRST_TEXCOORD = 4;
// See: https://www.khronos.org/opengl/wiki/Common_Mistakes#Texture_edge_color_problem
// FIXME: make this dynamically configurable through ConfigServer
static constexpr bool CLAMP_DEPRECATED_BEHAVIOR = false;