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hwrasterizer: Use depth offset

This commit is contained in:
tfarley 2016-01-03 15:46:54 -08:00
parent 190b1bbf1f
commit f53dbafdae
3 changed files with 24 additions and 2 deletions
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16
src/video_core/renderer_opengl/gl_rasterizer.cpp
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@ -126,6 +126,7 @@ void RasterizerOpenGL::InitObjects() {
void RasterizerOpenGL::Reset() { void RasterizerOpenGL::Reset() {
SyncCullMode(); SyncCullMode();
SyncDepthModifiers();
SyncBlendEnabled(); SyncBlendEnabled();
SyncBlendFuncs(); SyncBlendFuncs();
SyncBlendColor(); SyncBlendColor();
@ -194,6 +195,12 @@ void RasterizerOpenGL::NotifyPicaRegisterChanged(u32 id) {
SyncCullMode(); SyncCullMode();
break; break;
// Depth modifiers
case PICA_REG_INDEX(viewport_depth_range):
case PICA_REG_INDEX(viewport_depth_far_plane):
SyncDepthModifiers();
break;
// Blending // Blending
case PICA_REG_INDEX(output_merger.alphablend_enable): case PICA_REG_INDEX(output_merger.alphablend_enable):
SyncBlendEnabled(); SyncBlendEnabled();
@ -602,6 +609,15 @@ void RasterizerOpenGL::SyncCullMode() {
} }
} }
void RasterizerOpenGL::SyncDepthModifiers() {
float depth_scale = -Pica::float24::FromRawFloat24(Pica::g_state.regs.viewport_depth_range).ToFloat32();
float depth_offset = Pica::float24::FromRawFloat24(Pica::g_state.regs.viewport_depth_far_plane).ToFloat32() / 2.0f;
// TODO: Implement scale modifier
uniform_block_data.data.depth_offset = depth_offset;
uniform_block_data.dirty = true;
}
void RasterizerOpenGL::SyncBlendEnabled() { void RasterizerOpenGL::SyncBlendEnabled() {
state.blend.enabled = (Pica::g_state.regs.output_merger.alphablend_enable == 1); state.blend.enabled = (Pica::g_state.regs.output_merger.alphablend_enable == 1);
} }

6
src/video_core/renderer_opengl/gl_rasterizer.h
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@ -197,7 +197,8 @@ private:
std::array<GLfloat, 4> const_color[6]; std::array<GLfloat, 4> const_color[6];
std::array<GLfloat, 4> tev_combiner_buffer_color; std::array<GLfloat, 4> tev_combiner_buffer_color;
GLint alphatest_ref; GLint alphatest_ref;
INSERT_PADDING_BYTES(12); GLfloat depth_offset;
INSERT_PADDING_BYTES(8);
}; };
static_assert(sizeof(UniformData) == 0x80, "The size of the UniformData structure has changed, update the structure in the shader"); static_assert(sizeof(UniformData) == 0x80, "The size of the UniformData structure has changed, update the structure in the shader");
@ -218,6 +219,9 @@ private:
/// Syncs the cull mode to match the PICA register /// Syncs the cull mode to match the PICA register
void SyncCullMode(); void SyncCullMode();
/// Syncs the depth scale and offset to match the PICA registers
void SyncDepthModifiers();
/// Syncs the blend enabled status to match the PICA register /// Syncs the blend enabled status to match the PICA register
void SyncBlendEnabled(); void SyncBlendEnabled();

4
src/video_core/renderer_opengl/gl_shader_gen.cpp
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@ -334,6 +334,7 @@ layout (std140) uniform shader_data {
vec4 const_color[NUM_TEV_STAGES]; vec4 const_color[NUM_TEV_STAGES];
vec4 tev_combiner_buffer_color; vec4 tev_combiner_buffer_color;
int alphatest_ref; int alphatest_ref;
float depth_offset;
}; };
uniform sampler2D tex[3]; uniform sampler2D tex[3];
@ -360,7 +361,8 @@ void main() {
out += ") discard;\n"; out += ") discard;\n";
} }
out += "color = last_tex_env_out;\n}"; out += "color = last_tex_env_out;\n";
out += "gl_FragDepth = gl_FragCoord.z + depth_offset;\n}";
return out; return out;
} }