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VideoCore: Extract swrast-specific data from OutputVertex

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This commit is contained in:
Yuri Kunde Schlesner 2016-12-18 23:43:37 -08:00
parent 8ed9f9d49f
commit dcdffabfe6
5 changed files with 64 additions and 58 deletions
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49
src/video_core/shader/shader.h
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@ -28,9 +28,6 @@ struct AttributeBuffer {
};
struct OutputVertex {
OutputVertex() = default;
// VS output attributes
Math::Vec4<float24> pos;
Math::Vec4<float24> quat;
Math::Vec4<float24> color;
@ -42,42 +39,22 @@ struct OutputVertex {
INSERT_PADDING_WORDS(1);
Math::Vec2<float24> tc2;
// Padding for optimal alignment
INSERT_PADDING_WORDS(4);
// Attributes used to store intermediate results
// position after perspective divide
Math::Vec3<float24> screenpos;
INSERT_PADDING_WORDS(1);
// Linear interpolation
// factor: 0=this, 1=vtx
void Lerp(float24 factor, const OutputVertex& vtx) {
pos = pos * factor + vtx.pos * (float24::FromFloat32(1) - factor);
// TODO: Should perform perspective correct interpolation here...
tc0 = tc0 * factor + vtx.tc0 * (float24::FromFloat32(1) - factor);
tc1 = tc1 * factor + vtx.tc1 * (float24::FromFloat32(1) - factor);
tc2 = tc2 * factor + vtx.tc2 * (float24::FromFloat32(1) - factor);
screenpos = screenpos * factor + vtx.screenpos * (float24::FromFloat32(1) - factor);
color = color * factor + vtx.color * (float24::FromFloat32(1) - factor);
}
// Linear interpolation
// factor: 0=v0, 1=v1
static OutputVertex Lerp(float24 factor, const OutputVertex& v0, const OutputVertex& v1) {
OutputVertex ret = v0;
ret.Lerp(factor, v1);
return ret;
}
static OutputVertex FromAttributeBuffer(const Regs& regs, AttributeBuffer& output);
};
#define ASSERT_POS(var, pos) \
static_assert(offsetof(OutputVertex, var) == pos * sizeof(float24), "Semantic at wrong " \
"offset.")
ASSERT_POS(pos, Regs::VSOutputAttributes::POSITION_X);
ASSERT_POS(quat, Regs::VSOutputAttributes::QUATERNION_X);
ASSERT_POS(color, Regs::VSOutputAttributes::COLOR_R);
ASSERT_POS(tc0, Regs::VSOutputAttributes::TEXCOORD0_U);
ASSERT_POS(tc1, Regs::VSOutputAttributes::TEXCOORD1_U);
ASSERT_POS(tc0_w, Regs::VSOutputAttributes::TEXCOORD0_W);
ASSERT_POS(view, Regs::VSOutputAttributes::VIEW_X);
ASSERT_POS(tc2, Regs::VSOutputAttributes::TEXCOORD2_U);
#undef ASSERT_POS
static_assert(std::is_pod<OutputVertex>::value, "Structure is not POD");
static_assert(sizeof(OutputVertex) == 32 * sizeof(float), "OutputVertex has invalid size");
static_assert(sizeof(OutputVertex) == 24 * sizeof(float), "OutputVertex has invalid size");
/**
* This structure contains the state information that needs to be unique for a shader unit. The 3DS