2015-05-19 06:21:33 +02:00
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// Copyright 2015 Citra Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#pragma once
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2016-04-30 17:34:51 +02:00
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#include <array>
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2015-10-06 04:33:47 +02:00
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#include <cstddef>
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2015-10-10 04:46:47 +02:00
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#include <cstring>
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2015-10-06 04:33:47 +02:00
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#include <memory>
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2015-07-26 03:13:11 +02:00
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#include <unordered_map>
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2016-09-18 02:38:01 +02:00
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#include <vector>
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2016-04-30 17:34:51 +02:00
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#include <glad/glad.h>
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#include "common/bit_field.h"
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2015-06-21 14:40:28 +02:00
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#include "common/common_types.h"
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2015-10-10 04:46:47 +02:00
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#include "common/hash.h"
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2016-04-30 17:34:51 +02:00
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#include "common/vector_math.h"
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#include "core/hw/gpu.h"
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2016-03-03 04:16:38 +01:00
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#include "video_core/pica_state.h"
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2016-04-30 17:34:51 +02:00
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#include "video_core/pica_types.h"
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2015-12-07 04:06:12 +01:00
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#include "video_core/rasterizer_interface.h"
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2017-01-29 00:12:09 +01:00
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#include "video_core/regs_framebuffer.h"
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#include "video_core/regs_lighting.h"
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#include "video_core/regs_rasterizer.h"
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#include "video_core/regs_texturing.h"
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2015-09-11 13:20:02 +02:00
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#include "video_core/renderer_opengl/gl_rasterizer_cache.h"
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2016-04-30 17:34:51 +02:00
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#include "video_core/renderer_opengl/gl_resource_manager.h"
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2017-04-17 06:43:58 +02:00
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#include "video_core/renderer_opengl/gl_shader_gen.h"
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2015-09-11 13:20:02 +02:00
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#include "video_core/renderer_opengl/gl_state.h"
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2016-02-04 06:03:20 +01:00
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#include "video_core/renderer_opengl/pica_to_gl.h"
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2016-04-30 17:34:51 +02:00
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#include "video_core/shader/shader.h"
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struct ScreenInfo;
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2015-05-19 06:21:33 +02:00
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2015-12-07 04:06:12 +01:00
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class RasterizerOpenGL : public VideoCore::RasterizerInterface {
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public:
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RasterizerOpenGL();
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~RasterizerOpenGL() override;
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2016-09-18 02:38:01 +02:00
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void AddTriangle(const Pica::Shader::OutputVertex& v0, const Pica::Shader::OutputVertex& v1,
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2015-07-22 01:04:05 +02:00
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const Pica::Shader::OutputVertex& v2) override;
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2015-05-19 06:21:33 +02:00
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void DrawTriangles() override;
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void NotifyPicaRegisterChanged(u32 id) override;
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2016-04-17 00:57:57 +02:00
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void FlushAll() override;
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2015-12-07 02:56:45 +01:00
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void FlushRegion(PAddr addr, u32 size) override;
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2016-04-17 00:57:57 +02:00
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void FlushAndInvalidateRegion(PAddr addr, u32 size) override;
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bool AccelerateDisplayTransfer(const GPU::Regs::DisplayTransferConfig& config) override;
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2016-09-27 12:09:53 +02:00
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bool AccelerateTextureCopy(const GPU::Regs::DisplayTransferConfig& config) override;
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2016-04-17 00:57:57 +02:00
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bool AccelerateFill(const GPU::Regs::MemoryFillConfig& config) override;
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bool AccelerateDisplay(const GPU::Regs::FramebufferConfig& config, PAddr framebuffer_addr,
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u32 pixel_stride, ScreenInfo& screen_info) override;
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2015-05-19 06:21:33 +02:00
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2015-10-10 01:32:38 +02:00
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/// OpenGL shader generated for a given Pica register state
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struct PicaShader {
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/// OpenGL shader resource
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OGLShader shader;
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};
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2015-10-10 01:32:38 +02:00
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private:
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struct SamplerInfo {
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using TextureConfig = Pica::TexturingRegs::TextureConfig;
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OGLSampler sampler;
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/// Creates the sampler object, initializing its state so that it's in sync with the
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/// SamplerInfo struct.
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void Create();
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/// Syncs the sampler object with the config, updating any necessary state.
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void SyncWithConfig(const TextureConfig& config);
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private:
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TextureConfig::TextureFilter mag_filter;
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TextureConfig::TextureFilter min_filter;
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TextureConfig::WrapMode wrap_s;
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TextureConfig::WrapMode wrap_t;
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u32 border_color;
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};
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2015-05-19 06:21:33 +02:00
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/// Structure that the hardware rendered vertices are composed of
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struct HardwareVertex {
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HardwareVertex(const Pica::Shader::OutputVertex& v, bool flip_quaternion) {
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position[0] = v.pos.x.ToFloat32();
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position[1] = v.pos.y.ToFloat32();
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position[2] = v.pos.z.ToFloat32();
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position[3] = v.pos.w.ToFloat32();
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color[0] = v.color.x.ToFloat32();
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color[1] = v.color.y.ToFloat32();
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color[2] = v.color.z.ToFloat32();
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color[3] = v.color.w.ToFloat32();
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tex_coord0[0] = v.tc0.x.ToFloat32();
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tex_coord0[1] = v.tc0.y.ToFloat32();
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tex_coord1[0] = v.tc1.x.ToFloat32();
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tex_coord1[1] = v.tc1.y.ToFloat32();
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tex_coord2[0] = v.tc2.x.ToFloat32();
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tex_coord2[1] = v.tc2.y.ToFloat32();
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tex_coord0_w = v.tc0_w.ToFloat32();
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2015-11-12 23:33:21 +01:00
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normquat[0] = v.quat.x.ToFloat32();
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normquat[1] = v.quat.y.ToFloat32();
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normquat[2] = v.quat.z.ToFloat32();
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normquat[3] = v.quat.w.ToFloat32();
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view[0] = v.view.x.ToFloat32();
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view[1] = v.view.y.ToFloat32();
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view[2] = v.view.z.ToFloat32();
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2016-01-29 05:29:33 +01:00
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if (flip_quaternion) {
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for (float& x : normquat) {
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x = -x;
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}
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}
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}
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GLfloat position[4];
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GLfloat color[4];
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GLfloat tex_coord0[2];
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GLfloat tex_coord1[2];
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GLfloat tex_coord2[2];
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GLfloat tex_coord0_w;
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GLfloat normquat[4];
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GLfloat view[3];
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};
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struct LightSrc {
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2016-02-04 06:13:17 +01:00
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alignas(16) GLvec3 specular_0;
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alignas(16) GLvec3 specular_1;
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alignas(16) GLvec3 diffuse;
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alignas(16) GLvec3 ambient;
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alignas(16) GLvec3 position;
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GLfloat dist_atten_bias;
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GLfloat dist_atten_scale;
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};
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/// Uniform structure for the Uniform Buffer Object, all vectors must be 16-byte aligned
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// NOTE: Always keep a vec4 at the end. The GL spec is not clear wether the alignment at
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// the end of a uniform block is included in UNIFORM_BLOCK_DATA_SIZE or not.
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// Not following that rule will cause problems on some AMD drivers.
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struct UniformData {
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alignas(8) GLvec2 framebuffer_scale;
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GLint alphatest_ref;
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GLfloat depth_scale;
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GLfloat depth_offset;
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2016-01-25 07:59:16 +01:00
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GLint scissor_x1;
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GLint scissor_y1;
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GLint scissor_x2;
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GLint scissor_y2;
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alignas(16) GLvec3 fog_color;
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alignas(16) GLvec3 lighting_global_ambient;
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LightSrc light_src[8];
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alignas(16) GLvec4 const_color[6]; // A vec4 color for each of the six tev stages
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alignas(16) GLvec4 tev_combiner_buffer_color;
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};
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2016-09-18 02:38:01 +02:00
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static_assert(
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sizeof(UniformData) == 0x3C0,
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"The size of the UniformData structure has changed, update the structure in the shader");
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static_assert(sizeof(UniformData) < 16384,
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"UniformData structure must be less than 16kb as per the OpenGL spec");
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2015-10-06 04:33:47 +02:00
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/// Sets the OpenGL shader in accordance with the current PICA register state
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void SetShader();
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2015-05-19 06:21:33 +02:00
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/// Syncs the cull mode to match the PICA register
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void SyncCullMode();
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2016-05-14 10:16:45 +02:00
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/// Syncs the depth scale to match the PICA register
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void SyncDepthScale();
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/// Syncs the depth offset to match the PICA register
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void SyncDepthOffset();
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2015-05-19 06:21:33 +02:00
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/// Syncs the blend enabled status to match the PICA register
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void SyncBlendEnabled();
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/// Syncs the blend functions to match the PICA register
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void SyncBlendFuncs();
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/// Syncs the blend color to match the PICA register
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void SyncBlendColor();
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2016-05-21 01:04:57 +02:00
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/// Syncs the fog states to match the PICA register
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void SyncFogColor();
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void SyncFogLUT();
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2015-05-19 06:21:33 +02:00
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/// Syncs the alpha test states to match the PICA register
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void SyncAlphaTest();
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2015-05-26 00:39:03 +02:00
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/// Syncs the logic op states to match the PICA register
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void SyncLogicOp();
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2016-03-31 15:36:00 +02:00
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/// Syncs the color write mask to match the PICA register state
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void SyncColorWriteMask();
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/// Syncs the stencil write mask to match the PICA register state
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void SyncStencilWriteMask();
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/// Syncs the depth write mask to match the PICA register state
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void SyncDepthWriteMask();
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2015-05-19 06:21:33 +02:00
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/// Syncs the stencil test states to match the PICA register
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void SyncStencilTest();
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/// Syncs the depth test states to match the PICA register
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void SyncDepthTest();
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/// Syncs the TEV combiner color buffer to match the PICA register
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void SyncCombinerColor();
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2016-04-22 16:52:02 +02:00
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/// Syncs the TEV constant color to match the PICA register
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2017-01-28 05:51:59 +01:00
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void SyncTevConstColor(int tev_index, const Pica::TexturingRegs::TevStageConfig& tev_stage);
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2016-04-22 16:52:02 +02:00
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2015-11-12 23:33:21 +01:00
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/// Syncs the lighting global ambient color to match the PICA register
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void SyncGlobalAmbient();
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2015-11-14 04:52:20 +01:00
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/// Syncs the lighting lookup tables
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void SyncLightingLUT(unsigned index);
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2016-04-22 16:52:02 +02:00
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/// Syncs the specified light's specular 0 color to match the PICA register
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void SyncLightSpecular0(int light_index);
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/// Syncs the specified light's specular 1 color to match the PICA register
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void SyncLightSpecular1(int light_index);
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2015-11-12 23:33:21 +01:00
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/// Syncs the specified light's diffuse color to match the PICA register
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void SyncLightDiffuse(int light_index);
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/// Syncs the specified light's ambient color to match the PICA register
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void SyncLightAmbient(int light_index);
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/// Syncs the specified light's position to match the PICA register
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void SyncLightPosition(int light_index);
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2016-05-23 22:53:53 +02:00
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/// Syncs the specified light's distance attenuation bias to match the PICA register
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void SyncLightDistanceAttenuationBias(int light_index);
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/// Syncs the specified light's distance attenuation scale to match the PICA register
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void SyncLightDistanceAttenuationScale(int light_index);
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2016-04-17 00:57:57 +02:00
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OpenGLState state;
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RasterizerCacheOpenGL res_cache;
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std::vector<HardwareVertex> vertex_batch;
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2017-04-17 06:43:58 +02:00
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std::unordered_map<GLShader::PicaShaderConfig, std::unique_ptr<PicaShader>> shader_cache;
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const PicaShader* current_shader = nullptr;
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2016-04-17 00:57:57 +02:00
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bool shader_dirty;
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2015-11-10 17:58:53 +01:00
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struct {
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UniformData data;
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2015-11-15 23:43:01 +01:00
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bool lut_dirty[6];
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bool fog_lut_dirty;
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bool dirty;
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} uniform_block_data = {};
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2016-04-17 00:57:57 +02:00
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std::array<SamplerInfo, 3> texture_samplers;
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2015-05-19 06:21:33 +02:00
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OGLVertexArray vertex_array;
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OGLBuffer vertex_buffer;
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2015-11-10 17:58:53 +01:00
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OGLBuffer uniform_buffer;
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2015-05-19 06:21:33 +02:00
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OGLFramebuffer framebuffer;
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2015-11-15 23:43:01 +01:00
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2016-04-17 00:57:57 +02:00
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std::array<OGLTexture, 6> lighting_luts;
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2016-05-14 10:16:06 +02:00
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std::array<std::array<GLvec4, 256>, 6> lighting_lut_data{};
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OGLTexture fog_lut;
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std::array<GLuint, 128> fog_lut_data{};
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};
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