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gl_rasterizer: Provide texture buffer offsets. 

This allows us to move all data into one TBO.
This commit is contained in:
Markus Wick 2018-05-19 09:48:41 +02:00
parent f50e505a5a
commit 10fba63b94
4 changed files with 41 additions and 14 deletions
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3
src/video_core/renderer_opengl/gl_rasterizer.cpp
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@ -76,6 +76,9 @@ RasterizerOpenGL::RasterizerOpenGL()
uniform_block_data.proctex_lut_dirty = true; uniform_block_data.proctex_lut_dirty = true;
uniform_block_data.proctex_diff_lut_dirty = true; uniform_block_data.proctex_diff_lut_dirty = true;
for (int i = 0; i < 24; i++)
uniform_block_data.data.lighting_lut_offset[i / 4][i % 4] = 256 * i;
glGetIntegerv(GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT, &uniform_buffer_alignment); glGetIntegerv(GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT, &uniform_buffer_alignment);
uniform_size_aligned_vs = uniform_size_aligned_vs =
Common::AlignUp<size_t>(sizeof(VSUniformData), uniform_buffer_alignment); Common::AlignUp<size_t>(sizeof(VSUniformData), uniform_buffer_alignment);

38
src/video_core/renderer_opengl/gl_shader_gen.cpp
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@ -32,6 +32,7 @@ namespace GLShader {
static const std::string UniformBlockDef = R"( static const std::string UniformBlockDef = R"(
#define NUM_TEV_STAGES 6 #define NUM_TEV_STAGES 6
#define NUM_LIGHTS 8 #define NUM_LIGHTS 8
#define NUM_LIGHTING_SAMPLERS 24
struct LightSrc { struct LightSrc {
vec3 specular_0; vec3 specular_0;
@ -55,6 +56,13 @@ layout (std140) uniform shader_data {
int scissor_y1; int scissor_y1;
int scissor_x2; int scissor_x2;
int scissor_y2; int scissor_y2;
int fog_lut_offset;
int proctex_noise_lut_offset;
int proctex_color_map_offset;
int proctex_alpha_map_offset;
int proctex_lut_offset;
int proctex_diff_lut_offset;
ivec4 lighting_lut_offset[NUM_LIGHTING_SAMPLERS / 4];
vec3 fog_color; vec3 fog_color;
vec2 proctex_noise_f; vec2 proctex_noise_f;
vec2 proctex_noise_a; vec2 proctex_noise_a;
@ -1017,7 +1025,7 @@ void AppendProcTexClamp(std::string& out, const std::string& var, ProcTexClamp m
} }
void AppendProcTexCombineAndMap(std::string& out, ProcTexCombiner combiner, void AppendProcTexCombineAndMap(std::string& out, ProcTexCombiner combiner,
const std::string& map_lut) { const std::string& map_lut, const std::string& offset) {
std::string combined; std::string combined;
switch (combiner) { switch (combiner) {
case ProcTexCombiner::U: case ProcTexCombiner::U:
@ -1055,7 +1063,7 @@ void AppendProcTexCombineAndMap(std::string& out, ProcTexCombiner combiner,
combined = "0.0"; combined = "0.0";
break; break;
} }
out += "ProcTexLookupLUT(" + map_lut + ", " + combined + ")"; out += "ProcTexLookupLUT(" + map_lut + ", " + offset + ", " + combined + ")";
} }
void AppendProcTexSampler(std::string& out, const PicaFSConfig& config) { void AppendProcTexSampler(std::string& out, const PicaFSConfig& config) {
@ -1064,12 +1072,12 @@ void AppendProcTexSampler(std::string& out, const PicaFSConfig& config) {
// coord=1.0 is lut[127]+lut_diff[127]. For other indices, the result is interpolated using // coord=1.0 is lut[127]+lut_diff[127]. For other indices, the result is interpolated using
// value entries and difference entries. // value entries and difference entries.
out += R"( out += R"(
float ProcTexLookupLUT(samplerBuffer lut, float coord) { float ProcTexLookupLUT(samplerBuffer lut, int offset, float coord) {
coord *= 128; coord *= 128;
float index_i = clamp(floor(coord), 0.0, 127.0); float index_i = clamp(floor(coord), 0.0, 127.0);
float index_f = coord - index_i; // fract() cannot be used here because 128.0 needs to be float index_f = coord - index_i; // fract() cannot be used here because 128.0 needs to be
// extracted as index_i = 127.0 and index_f = 1.0 // extracted as index_i = 127.0 and index_f = 1.0
vec2 entry = texelFetch(lut, int(index_i)).rg; vec2 entry = texelFetch(lut, int(index_i) + offset).rg;
return clamp(entry.r + entry.g * index_f, 0.0, 1.0); return clamp(entry.r + entry.g * index_f, 0.0, 1.0);
} }
)"; )";
@ -1105,8 +1113,8 @@ float ProcTexNoiseCoef(vec2 x) {
float g2 = ProcTexNoiseRand2D(point + vec2(0.0, 1.0)) * (frac.x + frac.y - 1.0); float g2 = ProcTexNoiseRand2D(point + vec2(0.0, 1.0)) * (frac.x + frac.y - 1.0);
float g3 = ProcTexNoiseRand2D(point + vec2(1.0, 1.0)) * (frac.x + frac.y - 2.0); float g3 = ProcTexNoiseRand2D(point + vec2(1.0, 1.0)) * (frac.x + frac.y - 2.0);
float x_noise = ProcTexLookupLUT(proctex_noise_lut, frac.x); float x_noise = ProcTexLookupLUT(proctex_noise_lut, proctex_noise_lut_offset, frac.x);
float y_noise = ProcTexLookupLUT(proctex_noise_lut, frac.y); float y_noise = ProcTexLookupLUT(proctex_noise_lut, proctex_noise_lut_offset, frac.y);
float x0 = mix(g0, g1, x_noise); float x0 = mix(g0, g1, x_noise);
float x1 = mix(g2, g3, x_noise); float x1 = mix(g2, g3, x_noise);
return mix(x0, x1, y_noise); return mix(x0, x1, y_noise);
@ -1148,7 +1156,8 @@ float ProcTexNoiseCoef(vec2 x) {
// Combine and map // Combine and map
out += "float lut_coord = "; out += "float lut_coord = ";
AppendProcTexCombineAndMap(out, config.state.proctex.color_combiner, "proctex_color_map"); AppendProcTexCombineAndMap(out, config.state.proctex.color_combiner, "proctex_color_map",
"proctex_color_map_offset");
out += ";\n"; out += ";\n";
// Look up color // Look up color
@ -1162,14 +1171,16 @@ float ProcTexNoiseCoef(vec2 x) {
out += "int lut_index_i = int(lut_coord) + " + out += "int lut_index_i = int(lut_coord) + " +
std::to_string(config.state.proctex.lut_offset) + ";\n"; std::to_string(config.state.proctex.lut_offset) + ";\n";
out += "float lut_index_f = fract(lut_coord);\n"; out += "float lut_index_f = fract(lut_coord);\n";
out += "vec4 final_color = texelFetch(proctex_lut, lut_index_i) + lut_index_f * " out += "vec4 final_color = texelFetch(proctex_lut, lut_index_i + proctex_lut_offset) + "
"texelFetch(proctex_diff_lut, lut_index_i);\n"; "lut_index_f * "
"texelFetch(proctex_diff_lut, lut_index_i + proctex_diff_lut_offset);\n";
break; break;
case ProcTexFilter::Nearest: case ProcTexFilter::Nearest:
case ProcTexFilter::NearestMipmapLinear: case ProcTexFilter::NearestMipmapLinear:
case ProcTexFilter::NearestMipmapNearest: case ProcTexFilter::NearestMipmapNearest:
out += "lut_coord += " + std::to_string(config.state.proctex.lut_offset) + ";\n"; out += "lut_coord += " + std::to_string(config.state.proctex.lut_offset) + ";\n";
out += "vec4 final_color = texelFetch(proctex_lut, int(round(lut_coord)));\n"; out += "vec4 final_color = texelFetch(proctex_lut, int(round(lut_coord)) + "
"proctex_lut_offset);\n";
break; break;
} }
@ -1177,7 +1188,8 @@ float ProcTexNoiseCoef(vec2 x) {
// Note: in separate alpha mode, the alpha channel skips the color LUT look up stage. It // Note: in separate alpha mode, the alpha channel skips the color LUT look up stage. It
// uses the output of CombineAndMap directly instead. // uses the output of CombineAndMap directly instead.
out += "float final_alpha = "; out += "float final_alpha = ";
AppendProcTexCombineAndMap(out, config.state.proctex.alpha_combiner, "proctex_alpha_map"); AppendProcTexCombineAndMap(out, config.state.proctex.alpha_combiner, "proctex_alpha_map",
"proctex_alpha_map_offset");
out += ";\n"; out += ";\n";
out += "return vec4(final_color.xyz, final_alpha);\n}\n"; out += "return vec4(final_color.xyz, final_alpha);\n}\n";
} else { } else {
@ -1238,7 +1250,7 @@ vec3 quaternion_rotate(vec4 q, vec3 v) {
} }
float LookupLightingLUT(int lut_index, int index, float delta) { float LookupLightingLUT(int lut_index, int index, float delta) {
vec2 entry = texelFetch(lighting_lut, lut_index * 256 + index).rg; vec2 entry = texelFetch(lighting_lut, lighting_lut_offset[lut_index >> 2][lut_index & 3] + index).rg;
return entry.r + entry.g * delta; return entry.r + entry.g * delta;
} }
@ -1481,7 +1493,7 @@ vec4 secondary_fragment_color = vec4(0.0);
// Generate clamped fog factor from LUT for given fog index // Generate clamped fog factor from LUT for given fog index
out += "float fog_i = clamp(floor(fog_index), 0.0, 127.0);\n"; out += "float fog_i = clamp(floor(fog_index), 0.0, 127.0);\n";
out += "float fog_f = fog_index - fog_i;\n"; out += "float fog_f = fog_index - fog_i;\n";
out += "vec2 fog_lut_entry = texelFetch(fog_lut, int(fog_i)).rg;\n"; out += "vec2 fog_lut_entry = texelFetch(fog_lut, int(fog_i) + fog_lut_offset).rg;\n";
out += "float fog_factor = fog_lut_entry.r + fog_lut_entry.g * fog_f;\n"; out += "float fog_factor = fog_lut_entry.r + fog_lut_entry.g * fog_f;\n";
out += "fog_factor = clamp(fog_factor, 0.0, 1.0);\n"; out += "fog_factor = clamp(fog_factor, 0.0, 1.0);\n";

10
src/video_core/renderer_opengl/gl_shader_manager.h
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@ -6,6 +6,7 @@
#include <memory> #include <memory>
#include <glad/glad.h> #include <glad/glad.h>
#include "video_core/regs_lighting.h"
#include "video_core/renderer_opengl/gl_resource_manager.h" #include "video_core/renderer_opengl/gl_resource_manager.h"
#include "video_core/renderer_opengl/gl_shader_gen.h" #include "video_core/renderer_opengl/gl_shader_gen.h"
#include "video_core/renderer_opengl/pica_to_gl.h" #include "video_core/renderer_opengl/pica_to_gl.h"
@ -38,6 +39,13 @@ struct UniformData {
GLint scissor_y1; GLint scissor_y1;
GLint scissor_x2; GLint scissor_x2;
GLint scissor_y2; GLint scissor_y2;
GLint fog_lut_offset;
GLint proctex_noise_lut_offset;
GLint proctex_color_map_offset;
GLint proctex_alpha_map_offset;
GLint proctex_lut_offset;
GLint proctex_diff_lut_offset;
alignas(16) GLivec4 lighting_lut_offset[Pica::LightingRegs::NumLightingSampler / 4];
alignas(16) GLvec3 fog_color; alignas(16) GLvec3 fog_color;
alignas(8) GLvec2 proctex_noise_f; alignas(8) GLvec2 proctex_noise_f;
alignas(8) GLvec2 proctex_noise_a; alignas(8) GLvec2 proctex_noise_a;
@ -50,7 +58,7 @@ struct UniformData {
}; };
static_assert( static_assert(
sizeof(UniformData) == 0x470, sizeof(UniformData) == 0x4e0,
"The size of the UniformData structure has changed, update the structure in the shader"); "The size of the UniformData structure has changed, update the structure in the shader");
static_assert(sizeof(UniformData) < 16384, static_assert(sizeof(UniformData) < 16384,
"UniformData structure must be less than 16kb as per the OpenGL spec"); "UniformData structure must be less than 16kb as per the OpenGL spec");

4
src/video_core/renderer_opengl/pica_to_gl.h
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@ -23,6 +23,10 @@ using GLuvec2 = std::array<GLuint, 2>;
using GLuvec3 = std::array<GLuint, 3>; using GLuvec3 = std::array<GLuint, 3>;
using GLuvec4 = std::array<GLuint, 4>; using GLuvec4 = std::array<GLuint, 4>;
using GLivec2 = std::array<GLint, 2>;
using GLivec3 = std::array<GLint, 3>;
using GLivec4 = std::array<GLint, 4>;
namespace PicaToGL { namespace PicaToGL {
inline GLenum TextureFilterMode(Pica::TexturingRegs::TextureConfig::TextureFilter mode) { inline GLenum TextureFilterMode(Pica::TexturingRegs::TextureConfig::TextureFilter mode) {