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pica: use correct coordinates for texture 2

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This commit is contained in:
wwylele 2017-05-03 19:59:48 +03:00
parent 06d4654966
commit 0f664ef89d
4 changed files with 22 additions and 5 deletions
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17
src/video_core/renderer_opengl/gl_shader_gen.cpp
View file

@ -40,6 +40,8 @@ PicaShaderConfig PicaShaderConfig::BuildFromRegs(const Pica::Regs& regs) {
state.texture0_type = regs.texturing.texture0.type;
state.texture2_use_coord1 = regs.texturing.texture2_use_coord1 != 0;
// Copy relevant tev stages fields.
// We don't sync const_color here because of the high variance, it is a
// shader uniform instead.
@ -126,6 +128,15 @@ static bool IsPassThroughTevStage(const TevStageConfig& stage) {
stage.GetColorMultiplier() == 1 && stage.GetAlphaMultiplier() == 1);
}
static std::string TexCoord(const PicaShaderConfig& config, int texture_unit) {
if (texture_unit == 2 && config.state.texture2_use_coord1) {
return "texcoord[1]";
}
// TODO: if texture unit 3 (procedural texture) implementation also uses this function,
// config.state.texture3_coordinates should be repected here.
return "texcoord[" + std::to_string(texture_unit) + "]";
}
/// Writes the specified TEV stage source component(s)
static void AppendSource(std::string& out, const PicaShaderConfig& config,
TevStageConfig::Source source, const std::string& index_name) {
@ -162,7 +173,7 @@ static void AppendSource(std::string& out, const PicaShaderConfig& config,
out += "texture(tex[1], texcoord[1])";
break;
case Source::Texture2:
out += "texture(tex[2], texcoord[2])";
out += "texture(tex[2], " + TexCoord(config, 2) + ")";
break;
case Source::PreviousBuffer:
out += "combiner_buffer";
@ -473,8 +484,8 @@ static void WriteLighting(std::string& out, const PicaShaderConfig& config) {
// Bump mapping is enabled using a normal map, read perturbation vector from the selected
// texture
std::string bump_selector = std::to_string(lighting.bump_selector);
out += "vec3 surface_normal = 2.0 * texture(tex[" + bump_selector + "], texcoord[" +
bump_selector + "]).rgb - 1.0;\n";
out += "vec3 surface_normal = 2.0 * texture(tex[" + bump_selector + "], " +
TexCoord(config, lighting.bump_selector) + ").rgb - 1.0;\n";
// Recompute Z-component of perturbation if 'renorm' is enabled, this provides a higher
// precision result

1
src/video_core/renderer_opengl/gl_shader_gen.h
View file

@ -79,6 +79,7 @@ union PicaShaderConfig {
Pica::FramebufferRegs::CompareFunc alpha_test_func;
Pica::RasterizerRegs::ScissorMode scissor_test_mode;
Pica::TexturingRegs::TextureConfig::TextureType texture0_type;
bool texture2_use_coord1;
std::array<TevStageConfigRaw, 6> tev_stages;
u8 combiner_buffer_input;