From 89e81a9be26da83114e600d141085e9b7ac98529 Mon Sep 17 00:00:00 2001 From: Subv Date: Wed, 6 Jun 2018 18:26:41 -0500 Subject: [PATCH] GLState: Support changing the GL_TEXTURE_SWIZZLE parameter of each texture unit. --- src/video_core/renderer_opengl/gl_state.cpp | 13 +++++++++++++ src/video_core/renderer_opengl/gl_state.h | 6 ++++++ src/video_core/renderer_opengl/renderer_opengl.cpp | 1 + 3 files changed, 20 insertions(+) diff --git a/src/video_core/renderer_opengl/gl_state.cpp b/src/video_core/renderer_opengl/gl_state.cpp index f91dfe36a..44f0c8a01 100644 --- a/src/video_core/renderer_opengl/gl_state.cpp +++ b/src/video_core/renderer_opengl/gl_state.cpp @@ -50,6 +50,10 @@ OpenGLState::OpenGLState() { for (auto& texture_unit : texture_units) { texture_unit.texture_2d = 0; texture_unit.sampler = 0; + texture_unit.swizzle.r = GL_RED; + texture_unit.swizzle.g = GL_GREEN; + texture_unit.swizzle.b = GL_BLUE; + texture_unit.swizzle.a = GL_ALPHA; } lighting_lut.texture_buffer = 0; @@ -200,6 +204,15 @@ void OpenGLState::Apply() const { if (texture_units[i].sampler != cur_state.texture_units[i].sampler) { glBindSampler(i, texture_units[i].sampler); } + // Update the texture swizzle + if (texture_units[i].swizzle.r != cur_state.texture_units[i].swizzle.r || + texture_units[i].swizzle.g != cur_state.texture_units[i].swizzle.g || + texture_units[i].swizzle.b != cur_state.texture_units[i].swizzle.b || + texture_units[i].swizzle.a != cur_state.texture_units[i].swizzle.a) { + std::array mask = {texture_units[i].swizzle.r, texture_units[i].swizzle.g, + texture_units[i].swizzle.b, texture_units[i].swizzle.a}; + glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_RGBA, mask.data()); + } } // Constbuffers diff --git a/src/video_core/renderer_opengl/gl_state.h b/src/video_core/renderer_opengl/gl_state.h index 75c08e645..839e50e93 100644 --- a/src/video_core/renderer_opengl/gl_state.h +++ b/src/video_core/renderer_opengl/gl_state.h @@ -85,6 +85,12 @@ public: struct { GLuint texture_2d; // GL_TEXTURE_BINDING_2D GLuint sampler; // GL_SAMPLER_BINDING + struct { + GLint r; // GL_TEXTURE_SWIZZLE_R + GLint g; // GL_TEXTURE_SWIZZLE_G + GLint b; // GL_TEXTURE_SWIZZLE_B + GLint a; // GL_TEXTURE_SWIZZLE_A + } swizzle; } texture_units[32]; struct { diff --git a/src/video_core/renderer_opengl/renderer_opengl.cpp b/src/video_core/renderer_opengl/renderer_opengl.cpp index 3440d2190..f33766bfd 100644 --- a/src/video_core/renderer_opengl/renderer_opengl.cpp +++ b/src/video_core/renderer_opengl/renderer_opengl.cpp @@ -316,6 +316,7 @@ void RendererOpenGL::DrawScreenTriangles(const ScreenInfo& screen_info, float x, }}; state.texture_units[0].texture_2d = screen_info.display_texture; + state.texture_units[0].swizzle = {GL_RED, GL_GREEN, GL_BLUE, GL_ALPHA}; state.Apply(); glBufferSubData(GL_ARRAY_BUFFER, 0, sizeof(vertices), vertices.data());