1 // 2 // Copyright 2016 The ANGLE Project Authors. All rights reserved. 3 // Use of this source code is governed by a BSD-style license that can be 4 // found in the LICENSE file. 5 // 6 // ContextImpl: 7 // Implementation-specific functionality associated with a GL Context. 8 // 9 10 #ifndef LIBANGLE_RENDERER_CONTEXTIMPL_H_ 11 #define LIBANGLE_RENDERER_CONTEXTIMPL_H_ 12 13 #include <vector> 14 15 #include "common/angleutils.h" 16 #include "libANGLE/State.h" 17 #include "libANGLE/renderer/GLImplFactory.h" 18 19 namespace gl 20 { 21 class ErrorSet; 22 class MemoryProgramCache; 23 class Path; 24 class Semaphore; 25 struct Workarounds; 26 } // namespace gl 27 28 namespace rx 29 { 30 class ContextImpl : public GLImplFactory 31 { 32 public: 33 ContextImpl(const gl::State &state, gl::ErrorSet *errorSet); 34 ~ContextImpl() override; 35 onDestroy(const gl::Context * context)36 virtual void onDestroy(const gl::Context *context) {} 37 38 virtual angle::Result initialize() = 0; 39 40 // Flush and finish. 41 virtual angle::Result flush(const gl::Context *context) = 0; 42 virtual angle::Result finish(const gl::Context *context) = 0; 43 44 // Drawing methods. 45 virtual angle::Result drawArrays(const gl::Context *context, 46 gl::PrimitiveMode mode, 47 GLint first, 48 GLsizei count) = 0; 49 virtual angle::Result drawArraysInstanced(const gl::Context *context, 50 gl::PrimitiveMode mode, 51 GLint first, 52 GLsizei count, 53 GLsizei instanceCount) = 0; 54 // Necessary for Vulkan since gl_InstanceIndex includes baseInstance 55 virtual angle::Result drawArraysInstancedBaseInstance(const gl::Context *context, 56 gl::PrimitiveMode mode, 57 GLint first, 58 GLsizei count, 59 GLsizei instanceCount, 60 GLuint baseInstance) = 0; 61 62 virtual angle::Result drawElements(const gl::Context *context, 63 gl::PrimitiveMode mode, 64 GLsizei count, 65 gl::DrawElementsType type, 66 const void *indices) = 0; 67 virtual angle::Result drawElementsBaseVertex(const gl::Context *context, 68 gl::PrimitiveMode mode, 69 GLsizei count, 70 gl::DrawElementsType type, 71 const void *indices, 72 GLint baseVertex) = 0; 73 virtual angle::Result drawElementsInstanced(const gl::Context *context, 74 gl::PrimitiveMode mode, 75 GLsizei count, 76 gl::DrawElementsType type, 77 const void *indices, 78 GLsizei instances) = 0; 79 virtual angle::Result drawElementsInstancedBaseVertex(const gl::Context *context, 80 gl::PrimitiveMode mode, 81 GLsizei count, 82 gl::DrawElementsType type, 83 const void *indices, 84 GLsizei instances, 85 GLint baseVertex) = 0; 86 virtual angle::Result drawElementsInstancedBaseVertexBaseInstance(const gl::Context *context, 87 gl::PrimitiveMode mode, 88 GLsizei count, 89 gl::DrawElementsType type, 90 const void *indices, 91 GLsizei instances, 92 GLint baseVertex, 93 GLuint baseInstance) = 0; 94 virtual angle::Result drawRangeElements(const gl::Context *context, 95 gl::PrimitiveMode mode, 96 GLuint start, 97 GLuint end, 98 GLsizei count, 99 gl::DrawElementsType type, 100 const void *indices) = 0; 101 virtual angle::Result drawRangeElementsBaseVertex(const gl::Context *context, 102 gl::PrimitiveMode mode, 103 GLuint start, 104 GLuint end, 105 GLsizei count, 106 gl::DrawElementsType type, 107 const void *indices, 108 GLint baseVertex) = 0; 109 110 virtual angle::Result drawArraysIndirect(const gl::Context *context, 111 gl::PrimitiveMode mode, 112 const void *indirect) = 0; 113 virtual angle::Result drawElementsIndirect(const gl::Context *context, 114 gl::PrimitiveMode mode, 115 gl::DrawElementsType type, 116 const void *indirect) = 0; 117 118 // MultiDraw* impl added as we need workaround for promoting dynamic attributes in D3D backend 119 virtual angle::Result multiDrawArrays(const gl::Context *context, 120 gl::PrimitiveMode mode, 121 const GLint *firsts, 122 const GLsizei *counts, 123 GLsizei drawcount) = 0; 124 virtual angle::Result multiDrawArraysInstanced(const gl::Context *context, 125 gl::PrimitiveMode mode, 126 const GLint *firsts, 127 const GLsizei *counts, 128 const GLsizei *instanceCounts, 129 GLsizei drawcount) = 0; 130 virtual angle::Result multiDrawElements(const gl::Context *context, 131 gl::PrimitiveMode mode, 132 const GLsizei *counts, 133 gl::DrawElementsType type, 134 const GLvoid *const *indices, 135 GLsizei drawcount) = 0; 136 virtual angle::Result multiDrawElementsInstanced(const gl::Context *context, 137 gl::PrimitiveMode mode, 138 const GLsizei *counts, 139 gl::DrawElementsType type, 140 const GLvoid *const *indices, 141 const GLsizei *instanceCounts, 142 GLsizei drawcount) = 0; 143 virtual angle::Result multiDrawArraysInstancedBaseInstance(const gl::Context *context, 144 gl::PrimitiveMode mode, 145 const GLint *firsts, 146 const GLsizei *counts, 147 const GLsizei *instanceCounts, 148 const GLuint *baseInstances, 149 GLsizei drawcount) = 0; 150 virtual angle::Result multiDrawElementsInstancedBaseVertexBaseInstance( 151 const gl::Context *context, 152 gl::PrimitiveMode mode, 153 const GLsizei *counts, 154 gl::DrawElementsType type, 155 const GLvoid *const *indices, 156 const GLsizei *instanceCounts, 157 const GLint *baseVertices, 158 const GLuint *baseInstances, 159 GLsizei drawcount) = 0; 160 161 // Device loss 162 virtual gl::GraphicsResetStatus getResetStatus() = 0; 163 164 // EXT_debug_marker 165 virtual angle::Result insertEventMarker(GLsizei length, const char *marker) = 0; 166 virtual angle::Result pushGroupMarker(GLsizei length, const char *marker) = 0; 167 virtual angle::Result popGroupMarker() = 0; 168 169 // KHR_debug 170 virtual angle::Result pushDebugGroup(const gl::Context *context, 171 GLenum source, 172 GLuint id, 173 const std::string &message) = 0; 174 virtual angle::Result popDebugGroup(const gl::Context *context) = 0; 175 virtual angle::Result handleNoopDrawEvent(); 176 177 // KHR_parallel_shader_compile setMaxShaderCompilerThreads(GLuint count)178 virtual void setMaxShaderCompilerThreads(GLuint count) {} 179 180 // GL_ANGLE_texture_storage_external 181 virtual void invalidateTexture(gl::TextureType target); 182 183 // EXT_shader_framebuffer_fetch_non_coherent framebufferFetchBarrier()184 virtual void framebufferFetchBarrier() {} 185 186 // State sync with dirty bits. 187 virtual angle::Result syncState(const gl::Context *context, 188 const gl::State::DirtyBits &dirtyBits, 189 const gl::State::DirtyBits &bitMask) = 0; 190 191 // Disjoint timer queries 192 virtual GLint getGPUDisjoint() = 0; 193 virtual GLint64 getTimestamp() = 0; 194 195 // Context switching 196 virtual angle::Result onMakeCurrent(const gl::Context *context) = 0; 197 virtual angle::Result onUnMakeCurrent(const gl::Context *context); 198 199 // Native capabilities, unmodified by gl::Context. 200 virtual gl::Caps getNativeCaps() const = 0; 201 virtual const gl::TextureCapsMap &getNativeTextureCaps() const = 0; 202 virtual const gl::Extensions &getNativeExtensions() const = 0; 203 virtual const gl::Limitations &getNativeLimitations() const = 0; 204 205 virtual angle::Result dispatchCompute(const gl::Context *context, 206 GLuint numGroupsX, 207 GLuint numGroupsY, 208 GLuint numGroupsZ) = 0; 209 virtual angle::Result dispatchComputeIndirect(const gl::Context *context, 210 GLintptr indirect) = 0; 211 212 virtual angle::Result memoryBarrier(const gl::Context *context, GLbitfield barriers) = 0; 213 virtual angle::Result memoryBarrierByRegion(const gl::Context *context, 214 GLbitfield barriers) = 0; 215 getState()216 const gl::State &getState() const { return mState; } getClientMajorVersion()217 int getClientMajorVersion() const { return mState.getClientMajorVersion(); } getClientMinorVersion()218 int getClientMinorVersion() const { return mState.getClientMinorVersion(); } getCaps()219 const gl::Caps &getCaps() const { return mState.getCaps(); } getTextureCaps()220 const gl::TextureCapsMap &getTextureCaps() const { return mState.getTextureCaps(); } getExtensions()221 const gl::Extensions &getExtensions() const { return mState.getExtensions(); } getLimitations()222 const gl::Limitations &getLimitations() const { return mState.getLimitations(); } 223 224 // A common GL driver behaviour is to trigger dynamic shader recompilation on a draw call, 225 // based on the current render states. We store a mutable pointer to the program cache so 226 // on draw calls we can store the refreshed shaders in the cache. 227 void setMemoryProgramCache(gl::MemoryProgramCache *memoryProgramCache); 228 229 void handleError(GLenum errorCode, 230 const char *message, 231 const char *file, 232 const char *function, 233 unsigned int line); 234 235 virtual egl::ContextPriority getContextPriority() const; 236 237 // EGL_ANGLE_power_preference implementation. 238 virtual egl::Error releaseHighPowerGPU(gl::Context *context); 239 virtual egl::Error reacquireHighPowerGPU(gl::Context *context); 240 241 protected: 242 const gl::State &mState; 243 gl::MemoryProgramCache *mMemoryProgramCache; 244 gl::ErrorSet *mErrors; 245 }; 246 247 } // namespace rx 248 249 #endif // LIBANGLE_RENDERER_CONTEXTIMPL_H_ 250