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Split out the depth stuff from the file, move to GPU/Common
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| Original file line number | Diff line number | Diff line change |
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| // Copyright (c) 2012- PPSSPP Project. | ||
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| // This program is free software: you can redistribute it and/or modify | ||
| // it under the terms of the GNU General Public License as published by | ||
| // the Free Software Foundation, version 2.0 or later versions. | ||
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| // This program is distributed in the hope that it will be useful, | ||
| // but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| // GNU General Public License 2.0 for more details. | ||
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| // A copy of the GPL 2.0 should have been included with the program. | ||
| // If not, see http://www.gnu.org/licenses/ | ||
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| // Official git repository and contact information can be found at | ||
| // https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/. | ||
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| #include <algorithm> | ||
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| #include "Common/GPU/OpenGL/GLFeatures.h" | ||
| #include "Common/LogReporting.h" | ||
| #include "Core/ConfigValues.h" | ||
| #include "GPU/Common/GPUStateUtils.h" | ||
| #include "GPU/Common/DrawEngineCommon.h" | ||
| #include "GPU/Common/TextureCacheCommon.h" | ||
| #include "GPU/GLES/FramebufferManagerGLES.h" | ||
| #include "Common/GPU/ShaderWriter.h" | ||
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| static const InputDef vs_inputs[] = { | ||
| { "vec2", "a_position", Draw::SEM_POSITION }, | ||
| }; | ||
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| struct DepthUB { | ||
| float u_depthFactor[4]; | ||
| float u_depthShift[4]; | ||
| float u_depthTo8[4]; | ||
| }; | ||
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| const UniformDef depthUniforms[] = { | ||
| { "vec4", "u_depthFactor", 0 }, | ||
| { "vec4", "u_depthShift", 1}, | ||
| { "vec4", "u_depthTo8", 2}, | ||
| }; | ||
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| const UniformBufferDesc depthUBDesc{ sizeof(DepthUB), { | ||
| { "u_depthFactor", -1, -1, UniformType::FLOAT4, 0 }, | ||
| { "u_depthShift", -1, -1, UniformType::FLOAT4, 16 }, | ||
| { "u_depthTo8", -1, -1, UniformType::FLOAT4, 32 }, | ||
| } }; | ||
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| static const SamplerDef samplers[] = { | ||
| { 0, "tex" }, | ||
| }; | ||
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| static const VaryingDef varyings[] = { | ||
| { "vec2", "v_texcoord", Draw::SEM_TEXCOORD0, 0, "highp" }, | ||
| }; | ||
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| static const char *stencil_dl_fs = R"( | ||
| #ifdef GL_ES | ||
| #ifdef GL_FRAGMENT_PRECISION_HIGH | ||
| precision highp float; | ||
| #else | ||
| precision mediump float; | ||
| #endif | ||
| #endif | ||
| #if __VERSION__ >= 130 | ||
| #define varying in | ||
| #define texture2D texture | ||
| #define gl_FragColor fragColor0 | ||
| out vec4 fragColor0; | ||
| #endif | ||
| varying vec2 v_texcoord; | ||
| lowp uniform usampler2D tex; | ||
| void main() { | ||
| uint stencil = texture2D(tex, v_texcoord).r; | ||
| float scaled = float(stencil) / 255.0; | ||
| gl_FragColor = vec4(scaled, scaled, scaled, scaled); | ||
| } | ||
| )"; | ||
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| static const char *stencil_vs = R"( | ||
| #ifdef GL_ES | ||
| precision highp float; | ||
| #endif | ||
| #if __VERSION__ >= 130 | ||
| #define attribute in | ||
| #define varying out | ||
| #endif | ||
| attribute vec2 a_position; | ||
| varying vec2 v_texcoord; | ||
| void main() { | ||
| v_texcoord = a_position * 2.0; | ||
| gl_Position = vec4(v_texcoord * 2.0 - vec2(1.0, 1.0), 0.0, 1.0); | ||
| } | ||
| )"; | ||
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| Draw::Pipeline *CreateReadbackPipeline(Draw::DrawContext *draw, const char *tag, const UniformBufferDesc *ubDesc, const char *fs, const char *fsTag, const char *vs, const char *vsTag); | ||
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| // Well, this is not depth, but it's depth/stencil related. | ||
| bool FramebufferManagerGLES::ReadbackStencilbufferSync(Draw::Framebuffer *fbo, int x, int y, int w, int h, uint8_t *pixels, int pixelsStride) { | ||
| using namespace Draw; | ||
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| if (!fbo) { | ||
| ERROR_LOG_REPORT_ONCE(vfbfbozero, SCEGE, "ReadbackStencilbufferSync: bad fbo"); | ||
| return false; | ||
| } | ||
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| const bool useColorPath = gl_extensions.IsGLES; | ||
| if (!useColorPath) { | ||
| return draw_->CopyFramebufferToMemorySync(fbo, FB_STENCIL_BIT, x, y, w, h, DataFormat::S8, pixels, pixelsStride, "ReadbackStencilbufferSync"); | ||
| } | ||
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| // Unsupported below GLES 3.1 or without ARB_stencil_texturing. | ||
| // OES_texture_stencil8 is related, but used to specify texture data. | ||
| if ((gl_extensions.IsGLES && !gl_extensions.VersionGEThan(3, 1)) && !gl_extensions.ARB_stencil_texturing) | ||
| return false; | ||
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| // Pixel size always 4 here because we always request RGBA back. | ||
| const u32 bufSize = w * h * 4; | ||
| if (!convBuf_ || convBufSize_ < bufSize) { | ||
| delete[] convBuf_; | ||
| convBuf_ = new u8[bufSize]; | ||
| convBufSize_ = bufSize; | ||
| } | ||
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| if (!stencilReadbackPipeline_) { | ||
| stencilReadbackPipeline_ = CreateReadbackPipeline(draw_, "stencil_dl", &depthUBDesc, stencil_dl_fs, "stencil_dl_fs", stencil_vs, "stencil_vs"); | ||
| stencilReadbackSampler_ = draw_->CreateSamplerState({}); | ||
| } | ||
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| shaderManager_->DirtyLastShader(); | ||
| auto *blitFBO = GetTempFBO(TempFBO::COPY, fbo->Width(), fbo->Height()); | ||
| draw_->BindFramebufferAsRenderTarget(blitFBO, { RPAction::DONT_CARE, RPAction::DONT_CARE, RPAction::DONT_CARE }, "ReadbackStencilbufferSync"); | ||
| Draw::Viewport viewport = { 0.0f, 0.0f, (float)fbo->Width(), (float)fbo->Height(), 0.0f, 1.0f }; | ||
| draw_->SetViewports(1, &viewport); | ||
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| draw_->BindFramebufferAsTexture(fbo, TEX_SLOT_PSP_TEXTURE, FB_STENCIL_BIT, 0); | ||
| draw_->BindSamplerStates(TEX_SLOT_PSP_TEXTURE, 1, &stencilReadbackSampler_); | ||
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| // We must bind the program after starting the render pass. | ||
| draw_->SetScissorRect(0, 0, w, h); | ||
| draw_->BindPipeline(stencilReadbackPipeline_); | ||
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| // Fullscreen triangle coordinates. | ||
| static const float positions[6] = { | ||
| 0.0, 0.0, | ||
| 1.0, 0.0, | ||
| 0.0, 1.0, | ||
| }; | ||
| draw_->DrawUP(positions, 3); | ||
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| draw_->CopyFramebufferToMemorySync(blitFBO, FB_COLOR_BIT, x, y, w, h, DataFormat::R8G8B8A8_UNORM, convBuf_, w, "ReadbackStencilbufferSync"); | ||
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| textureCache_->ForgetLastTexture(); | ||
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| // TODO: Use 1/4 width to write all values directly and skip CPU conversion? | ||
| uint8_t *dest = pixels; | ||
| const u32_le *packed32 = (u32_le *)convBuf_; | ||
| for (int yp = 0; yp < h; ++yp) { | ||
| for (int xp = 0; xp < w; ++xp) { | ||
| dest[xp] = packed32[xp] & 0xFF; | ||
| } | ||
| dest += pixelsStride; | ||
| packed32 += w; | ||
| } | ||
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| gstate_c.Dirty(DIRTY_ALL_RENDER_STATE); | ||
| return true; | ||
| } |
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