| // |
| // Copyright 2018 The ANGLE Project Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| // |
| |
| // GLES1Renderer.cpp: Implements the GLES1Renderer renderer. |
| |
| #include "libANGLE/GLES1Renderer.h" |
| |
| #include <string.h> |
| #include <iterator> |
| #include <sstream> |
| #include <vector> |
| |
| #include "libANGLE/Context.h" |
| #include "libANGLE/Context.inl.h" |
| #include "libANGLE/Program.h" |
| #include "libANGLE/ResourceManager.h" |
| #include "libANGLE/Shader.h" |
| #include "libANGLE/State.h" |
| #include "libANGLE/renderer/ContextImpl.h" |
| |
| namespace |
| { |
| #include "libANGLE/GLES1Shaders.inc" |
| } // anonymous namespace |
| |
| namespace gl |
| { |
| |
| GLES1Renderer::GLES1Renderer() : mRendererProgramInitialized(false) {} |
| |
| void GLES1Renderer::onDestroy(Context *context, State *state) |
| { |
| if (mRendererProgramInitialized) |
| { |
| (void)state->setProgram(context, 0); |
| |
| mShaderPrograms->deleteProgram(context, mProgramState.program); |
| mShaderPrograms->release(context); |
| mShaderPrograms = nullptr; |
| mRendererProgramInitialized = false; |
| } |
| } |
| |
| GLES1Renderer::~GLES1Renderer() = default; |
| |
| angle::Result GLES1Renderer::prepareForDraw(PrimitiveMode mode, Context *context, State *glState) |
| { |
| ANGLE_TRY(initializeRendererProgram(context, glState)); |
| |
| GLES1State &gles1State = glState->gles1(); |
| |
| Program *programObject = getProgram(mProgramState.program); |
| |
| GLES1UniformBuffers &uniformBuffers = mUniformBuffers; |
| |
| // If anything is dirty in gles1 or the common parts of gles1/2, just redo these parts |
| // completely for now. |
| |
| // Feature enables |
| { |
| setUniform1i(context, programObject, mProgramState.enableAlphaTestLoc, |
| glState->getEnableFeature(GL_ALPHA_TEST)); |
| setUniform1i(context, programObject, mProgramState.enableLightingLoc, |
| glState->getEnableFeature(GL_LIGHTING)); |
| setUniform1i(context, programObject, mProgramState.enableRescaleNormalLoc, |
| glState->getEnableFeature(GL_RESCALE_NORMAL)); |
| setUniform1i(context, programObject, mProgramState.enableNormalizeLoc, |
| glState->getEnableFeature(GL_NORMALIZE)); |
| setUniform1i(context, programObject, mProgramState.enableColorMaterialLoc, |
| glState->getEnableFeature(GL_COLOR_MATERIAL)); |
| setUniform1i(context, programObject, mProgramState.fogEnableLoc, |
| glState->getEnableFeature(GL_FOG)); |
| |
| bool enableClipPlanes = false; |
| for (int i = 0; i < kClipPlaneCount; i++) |
| { |
| uniformBuffers.clipPlaneEnables[i] = glState->getEnableFeature(GL_CLIP_PLANE0 + i); |
| enableClipPlanes = enableClipPlanes || uniformBuffers.clipPlaneEnables[i]; |
| } |
| |
| setUniform1i(context, programObject, mProgramState.enableClipPlanesLoc, enableClipPlanes); |
| } |
| |
| // Texture unit enables and format info |
| { |
| std::array<GLint, kTexUnitCount> &tex2DEnables = uniformBuffers.tex2DEnables; |
| std::array<GLint, kTexUnitCount> &texCubeEnables = uniformBuffers.texCubeEnables; |
| |
| std::vector<int> tex2DFormats = {GL_RGBA, GL_RGBA, GL_RGBA, GL_RGBA}; |
| |
| Vec4Uniform *cropRectBuffer = uniformBuffers.texCropRects.data(); |
| |
| for (int i = 0; i < kTexUnitCount; i++) |
| { |
| // GL_OES_cube_map allows only one of TEXTURE_2D / TEXTURE_CUBE_MAP |
| // to be enabled per unit, thankfully. From the extension text: |
| // |
| // -- Section 3.8.10 "Texture Application" |
| // |
| // Replace the beginning sentences of the first paragraph (page 138) |
| // with: |
| // |
| // "Texturing is enabled or disabled using the generic Enable |
| // and Disable commands, respectively, with the symbolic constants |
| // TEXTURE_2D or TEXTURE_CUBE_MAP_OES to enable the two-dimensional or cube |
| // map texturing respectively. If the cube map texture and the two- |
| // dimensional texture are enabled, then cube map texturing is used. If |
| // texturing is disabled, a rasterized fragment is passed on unaltered to the |
| // next stage of the GL (although its texture coordinates may be discarded). |
| // Otherwise, a texture value is found according to the parameter values of |
| // the currently bound texture image of the appropriate dimensionality. |
| |
| texCubeEnables[i] = gles1State.isTextureTargetEnabled(i, TextureType::CubeMap); |
| tex2DEnables[i] = |
| !texCubeEnables[i] && (gles1State.isTextureTargetEnabled(i, TextureType::_2D)); |
| |
| Texture *curr2DTexture = glState->getSamplerTexture(i, TextureType::_2D); |
| if (curr2DTexture) |
| { |
| tex2DFormats[i] = gl::GetUnsizedFormat( |
| curr2DTexture->getFormat(TextureTarget::_2D, 0).info->internalFormat); |
| |
| const gl::Rectangle &cropRect = curr2DTexture->getCrop(); |
| |
| GLfloat textureWidth = |
| static_cast<GLfloat>(curr2DTexture->getWidth(TextureTarget::_2D, 0)); |
| GLfloat textureHeight = |
| static_cast<GLfloat>(curr2DTexture->getHeight(TextureTarget::_2D, 0)); |
| |
| if (textureWidth > 0.0f && textureHeight > 0.0f) |
| { |
| cropRectBuffer[i][0] = cropRect.x / textureWidth; |
| cropRectBuffer[i][1] = cropRect.y / textureHeight; |
| cropRectBuffer[i][2] = cropRect.width / textureWidth; |
| cropRectBuffer[i][3] = cropRect.height / textureHeight; |
| } |
| } |
| } |
| |
| setUniform1iv(context, programObject, mProgramState.enableTexture2DLoc, kTexUnitCount, |
| tex2DEnables.data()); |
| setUniform1iv(context, programObject, mProgramState.enableTextureCubeMapLoc, kTexUnitCount, |
| texCubeEnables.data()); |
| |
| setUniform1iv(context, programObject, mProgramState.textureFormatLoc, kTexUnitCount, |
| tex2DFormats.data()); |
| |
| setUniform4fv(programObject, mProgramState.drawTextureNormalizedCropRectLoc, kTexUnitCount, |
| reinterpret_cast<GLfloat *>(cropRectBuffer)); |
| } |
| |
| // Client state / current vector enables |
| if (gles1State.isDirty(GLES1State::DIRTY_GLES1_CLIENT_STATE_ENABLE) || |
| gles1State.isDirty(GLES1State::DIRTY_GLES1_CURRENT_VECTOR)) |
| { |
| if (!gles1State.isClientStateEnabled(ClientVertexArrayType::Normal)) |
| { |
| const angle::Vector3 normal = gles1State.getCurrentNormal(); |
| context->vertexAttrib3f(kNormalAttribIndex, normal.x(), normal.y(), normal.z()); |
| } |
| |
| if (!gles1State.isClientStateEnabled(ClientVertexArrayType::Color)) |
| { |
| const ColorF color = gles1State.getCurrentColor(); |
| context->vertexAttrib4f(kColorAttribIndex, color.red, color.green, color.blue, |
| color.alpha); |
| } |
| |
| if (!gles1State.isClientStateEnabled(ClientVertexArrayType::PointSize)) |
| { |
| GLfloat pointSize = gles1State.mPointParameters.pointSize; |
| context->vertexAttrib1f(kPointSizeAttribIndex, pointSize); |
| } |
| |
| for (int i = 0; i < kTexUnitCount; i++) |
| { |
| if (!gles1State.mTexCoordArrayEnabled[i]) |
| { |
| const TextureCoordF texcoord = gles1State.getCurrentTextureCoords(i); |
| context->vertexAttrib4f(kTextureCoordAttribIndexBase + i, texcoord.s, texcoord.t, |
| texcoord.r, texcoord.q); |
| } |
| } |
| } |
| |
| // Matrices |
| if (gles1State.isDirty(GLES1State::DIRTY_GLES1_MATRICES)) |
| { |
| angle::Mat4 proj = gles1State.mProjectionMatrices.back(); |
| setUniformMatrix4fv(programObject, mProgramState.projMatrixLoc, 1, GL_FALSE, proj.data()); |
| |
| angle::Mat4 modelview = gles1State.mModelviewMatrices.back(); |
| setUniformMatrix4fv(programObject, mProgramState.modelviewMatrixLoc, 1, GL_FALSE, |
| modelview.data()); |
| |
| angle::Mat4 modelviewInvTr = modelview.transpose().inverse(); |
| setUniformMatrix4fv(programObject, mProgramState.modelviewInvTrLoc, 1, GL_FALSE, |
| modelviewInvTr.data()); |
| |
| Mat4Uniform *textureMatrixBuffer = uniformBuffers.textureMatrices.data(); |
| |
| for (int i = 0; i < kTexUnitCount; i++) |
| { |
| angle::Mat4 textureMatrix = gles1State.mTextureMatrices[i].back(); |
| memcpy(textureMatrixBuffer + i, textureMatrix.data(), sizeof(Mat4Uniform)); |
| } |
| |
| setUniformMatrix4fv(programObject, mProgramState.textureMatrixLoc, kTexUnitCount, GL_FALSE, |
| reinterpret_cast<float *>(uniformBuffers.textureMatrices.data())); |
| } |
| |
| if (gles1State.isDirty(GLES1State::DIRTY_GLES1_TEXTURE_ENVIRONMENT)) |
| { |
| for (int i = 0; i < kTexUnitCount; i++) |
| { |
| const auto &env = gles1State.textureEnvironment(i); |
| |
| uniformBuffers.texEnvModes[i] = ToGLenum(env.mode); |
| uniformBuffers.texCombineRgbs[i] = ToGLenum(env.combineRgb); |
| uniformBuffers.texCombineAlphas[i] = ToGLenum(env.combineAlpha); |
| |
| uniformBuffers.texCombineSrc0Rgbs[i] = ToGLenum(env.src0Rgb); |
| uniformBuffers.texCombineSrc0Alphas[i] = ToGLenum(env.src0Alpha); |
| uniformBuffers.texCombineSrc1Rgbs[i] = ToGLenum(env.src1Rgb); |
| uniformBuffers.texCombineSrc1Alphas[i] = ToGLenum(env.src1Alpha); |
| uniformBuffers.texCombineSrc2Rgbs[i] = ToGLenum(env.src2Rgb); |
| uniformBuffers.texCombineSrc2Alphas[i] = ToGLenum(env.src2Alpha); |
| |
| uniformBuffers.texCombineOp0Rgbs[i] = ToGLenum(env.op0Rgb); |
| uniformBuffers.texCombineOp0Alphas[i] = ToGLenum(env.op0Alpha); |
| uniformBuffers.texCombineOp1Rgbs[i] = ToGLenum(env.op1Rgb); |
| uniformBuffers.texCombineOp1Alphas[i] = ToGLenum(env.op1Alpha); |
| uniformBuffers.texCombineOp2Rgbs[i] = ToGLenum(env.op2Rgb); |
| uniformBuffers.texCombineOp2Alphas[i] = ToGLenum(env.op2Alpha); |
| |
| uniformBuffers.texEnvColors[i][0] = env.color.red; |
| uniformBuffers.texEnvColors[i][1] = env.color.green; |
| uniformBuffers.texEnvColors[i][2] = env.color.blue; |
| uniformBuffers.texEnvColors[i][3] = env.color.alpha; |
| |
| uniformBuffers.texEnvRgbScales[i] = env.rgbScale; |
| uniformBuffers.texEnvAlphaScales[i] = env.alphaScale; |
| |
| uniformBuffers.pointSpriteCoordReplaces[i] = env.pointSpriteCoordReplace; |
| } |
| |
| setUniform1iv(context, programObject, mProgramState.textureEnvModeLoc, kTexUnitCount, |
| uniformBuffers.texEnvModes.data()); |
| setUniform1iv(context, programObject, mProgramState.combineRgbLoc, kTexUnitCount, |
| uniformBuffers.texCombineRgbs.data()); |
| setUniform1iv(context, programObject, mProgramState.combineAlphaLoc, kTexUnitCount, |
| uniformBuffers.texCombineAlphas.data()); |
| |
| setUniform1iv(context, programObject, mProgramState.src0rgbLoc, kTexUnitCount, |
| uniformBuffers.texCombineSrc0Rgbs.data()); |
| setUniform1iv(context, programObject, mProgramState.src0alphaLoc, kTexUnitCount, |
| uniformBuffers.texCombineSrc0Alphas.data()); |
| setUniform1iv(context, programObject, mProgramState.src1rgbLoc, kTexUnitCount, |
| uniformBuffers.texCombineSrc1Rgbs.data()); |
| setUniform1iv(context, programObject, mProgramState.src1alphaLoc, kTexUnitCount, |
| uniformBuffers.texCombineSrc1Alphas.data()); |
| setUniform1iv(context, programObject, mProgramState.src2rgbLoc, kTexUnitCount, |
| uniformBuffers.texCombineSrc2Rgbs.data()); |
| setUniform1iv(context, programObject, mProgramState.src2alphaLoc, kTexUnitCount, |
| uniformBuffers.texCombineSrc2Alphas.data()); |
| |
| setUniform1iv(context, programObject, mProgramState.op0rgbLoc, kTexUnitCount, |
| uniformBuffers.texCombineOp0Rgbs.data()); |
| setUniform1iv(context, programObject, mProgramState.op0alphaLoc, kTexUnitCount, |
| uniformBuffers.texCombineOp0Alphas.data()); |
| setUniform1iv(context, programObject, mProgramState.op1rgbLoc, kTexUnitCount, |
| uniformBuffers.texCombineOp1Rgbs.data()); |
| setUniform1iv(context, programObject, mProgramState.op1alphaLoc, kTexUnitCount, |
| uniformBuffers.texCombineOp1Alphas.data()); |
| setUniform1iv(context, programObject, mProgramState.op2rgbLoc, kTexUnitCount, |
| uniformBuffers.texCombineOp2Rgbs.data()); |
| setUniform1iv(context, programObject, mProgramState.op2alphaLoc, kTexUnitCount, |
| uniformBuffers.texCombineOp2Alphas.data()); |
| |
| setUniform4fv(programObject, mProgramState.textureEnvColorLoc, kTexUnitCount, |
| reinterpret_cast<float *>(uniformBuffers.texEnvColors.data())); |
| setUniform1fv(programObject, mProgramState.rgbScaleLoc, kTexUnitCount, |
| uniformBuffers.texEnvRgbScales.data()); |
| setUniform1fv(programObject, mProgramState.alphaScaleLoc, kTexUnitCount, |
| uniformBuffers.texEnvAlphaScales.data()); |
| |
| setUniform1iv(context, programObject, mProgramState.pointSpriteCoordReplaceLoc, |
| kTexUnitCount, uniformBuffers.pointSpriteCoordReplaces.data()); |
| } |
| |
| // Alpha test |
| if (gles1State.isDirty(GLES1State::DIRTY_GLES1_ALPHA_TEST)) |
| { |
| setUniform1i(context, programObject, mProgramState.alphaFuncLoc, |
| ToGLenum(gles1State.mAlphaTestFunc)); |
| setUniform1f(programObject, mProgramState.alphaTestRefLoc, gles1State.mAlphaTestRef); |
| } |
| |
| // Shading, materials, and lighting |
| if (gles1State.isDirty(GLES1State::DIRTY_GLES1_SHADE_MODEL)) |
| { |
| setUniform1i(context, programObject, mProgramState.shadeModelFlatLoc, |
| gles1State.mShadeModel == ShadingModel::Flat); |
| } |
| |
| if (gles1State.isDirty(GLES1State::DIRTY_GLES1_MATERIAL)) |
| { |
| const auto &material = gles1State.mMaterial; |
| |
| setUniform4fv(programObject, mProgramState.materialAmbientLoc, 1, material.ambient.data()); |
| setUniform4fv(programObject, mProgramState.materialDiffuseLoc, 1, material.diffuse.data()); |
| setUniform4fv(programObject, mProgramState.materialSpecularLoc, 1, |
| material.specular.data()); |
| setUniform4fv(programObject, mProgramState.materialEmissiveLoc, 1, |
| material.emissive.data()); |
| setUniform1f(programObject, mProgramState.materialSpecularExponentLoc, |
| material.specularExponent); |
| } |
| |
| if (gles1State.isDirty(GLES1State::DIRTY_GLES1_LIGHTS)) |
| { |
| const auto &lightModel = gles1State.mLightModel; |
| |
| setUniform4fv(programObject, mProgramState.lightModelSceneAmbientLoc, 1, |
| lightModel.color.data()); |
| |
| // TODO (lfy@google.com): Implement two-sided lighting model |
| // gl->uniform1i(mProgramState.lightModelTwoSidedLoc, lightModel.twoSided); |
| |
| for (int i = 0; i < kLightCount; i++) |
| { |
| const auto &light = gles1State.mLights[i]; |
| uniformBuffers.lightEnables[i] = light.enabled; |
| memcpy(uniformBuffers.lightAmbients.data() + i, light.ambient.data(), |
| sizeof(Vec4Uniform)); |
| memcpy(uniformBuffers.lightDiffuses.data() + i, light.diffuse.data(), |
| sizeof(Vec4Uniform)); |
| memcpy(uniformBuffers.lightSpeculars.data() + i, light.specular.data(), |
| sizeof(Vec4Uniform)); |
| memcpy(uniformBuffers.lightPositions.data() + i, light.position.data(), |
| sizeof(Vec4Uniform)); |
| memcpy(uniformBuffers.lightDirections.data() + i, light.direction.data(), |
| sizeof(Vec3Uniform)); |
| uniformBuffers.spotlightExponents[i] = light.spotlightExponent; |
| uniformBuffers.spotlightCutoffAngles[i] = light.spotlightCutoffAngle; |
| uniformBuffers.attenuationConsts[i] = light.attenuationConst; |
| uniformBuffers.attenuationLinears[i] = light.attenuationLinear; |
| uniformBuffers.attenuationQuadratics[i] = light.attenuationQuadratic; |
| } |
| |
| setUniform1iv(context, programObject, mProgramState.lightEnablesLoc, kLightCount, |
| uniformBuffers.lightEnables.data()); |
| setUniform4fv(programObject, mProgramState.lightAmbientsLoc, kLightCount, |
| reinterpret_cast<float *>(uniformBuffers.lightAmbients.data())); |
| setUniform4fv(programObject, mProgramState.lightDiffusesLoc, kLightCount, |
| reinterpret_cast<float *>(uniformBuffers.lightDiffuses.data())); |
| setUniform4fv(programObject, mProgramState.lightSpecularsLoc, kLightCount, |
| reinterpret_cast<float *>(uniformBuffers.lightSpeculars.data())); |
| setUniform4fv(programObject, mProgramState.lightPositionsLoc, kLightCount, |
| reinterpret_cast<float *>(uniformBuffers.lightPositions.data())); |
| setUniform3fv(programObject, mProgramState.lightDirectionsLoc, kLightCount, |
| reinterpret_cast<float *>(uniformBuffers.lightDirections.data())); |
| setUniform1fv(programObject, mProgramState.lightSpotlightExponentsLoc, kLightCount, |
| reinterpret_cast<float *>(uniformBuffers.spotlightExponents.data())); |
| setUniform1fv(programObject, mProgramState.lightSpotlightCutoffAnglesLoc, kLightCount, |
| reinterpret_cast<float *>(uniformBuffers.spotlightCutoffAngles.data())); |
| setUniform1fv(programObject, mProgramState.lightAttenuationConstsLoc, kLightCount, |
| reinterpret_cast<float *>(uniformBuffers.attenuationConsts.data())); |
| setUniform1fv(programObject, mProgramState.lightAttenuationLinearsLoc, kLightCount, |
| reinterpret_cast<float *>(uniformBuffers.attenuationLinears.data())); |
| setUniform1fv(programObject, mProgramState.lightAttenuationQuadraticsLoc, kLightCount, |
| reinterpret_cast<float *>(uniformBuffers.attenuationQuadratics.data())); |
| } |
| |
| if (gles1State.isDirty(GLES1State::DIRTY_GLES1_FOG)) |
| { |
| const FogParameters &fog = gles1State.fogParameters(); |
| setUniform1i(context, programObject, mProgramState.fogModeLoc, ToGLenum(fog.mode)); |
| setUniform1f(programObject, mProgramState.fogDensityLoc, fog.density); |
| setUniform1f(programObject, mProgramState.fogStartLoc, fog.start); |
| setUniform1f(programObject, mProgramState.fogEndLoc, fog.end); |
| setUniform4fv(programObject, mProgramState.fogColorLoc, 1, fog.color.data()); |
| } |
| |
| // Clip planes |
| if (gles1State.isDirty(GLES1State::DIRTY_GLES1_CLIP_PLANES)) |
| { |
| bool enableClipPlanes = false; |
| for (int i = 0; i < kClipPlaneCount; i++) |
| { |
| uniformBuffers.clipPlaneEnables[i] = glState->getEnableFeature(GL_CLIP_PLANE0 + i); |
| enableClipPlanes = enableClipPlanes || uniformBuffers.clipPlaneEnables[i]; |
| gles1State.getClipPlane( |
| i, reinterpret_cast<float *>(uniformBuffers.clipPlanes.data() + i)); |
| } |
| |
| setUniform1i(context, programObject, mProgramState.enableClipPlanesLoc, enableClipPlanes); |
| setUniform1iv(context, programObject, mProgramState.clipPlaneEnablesLoc, kClipPlaneCount, |
| uniformBuffers.clipPlaneEnables.data()); |
| setUniform4fv(programObject, mProgramState.clipPlanesLoc, kClipPlaneCount, |
| reinterpret_cast<float *>(uniformBuffers.clipPlanes.data())); |
| } |
| |
| // Point rasterization |
| { |
| const PointParameters &pointParams = gles1State.mPointParameters; |
| |
| setUniform1i(context, programObject, mProgramState.pointRasterizationLoc, |
| mode == PrimitiveMode::Points); |
| setUniform1i(context, programObject, mProgramState.pointSpriteEnabledLoc, |
| glState->getEnableFeature(GL_POINT_SPRITE_OES)); |
| setUniform1f(programObject, mProgramState.pointSizeMinLoc, pointParams.pointSizeMin); |
| setUniform1f(programObject, mProgramState.pointSizeMaxLoc, pointParams.pointSizeMax); |
| setUniform3fv(programObject, mProgramState.pointDistanceAttenuationLoc, 1, |
| pointParams.pointDistanceAttenuation.data()); |
| } |
| |
| // Draw texture |
| { |
| setUniform1i(context, programObject, mProgramState.enableDrawTextureLoc, |
| mDrawTextureEnabled ? 1 : 0); |
| setUniform4fv(programObject, mProgramState.drawTextureCoordsLoc, 1, mDrawTextureCoords); |
| setUniform2fv(programObject, mProgramState.drawTextureDimsLoc, 1, mDrawTextureDims); |
| } |
| |
| gles1State.clearDirty(); |
| // None of those are changes in sampler, so there is no need to set the GL_PROGRAM dirty. |
| // Otherwise, put the dirtying here. |
| |
| return angle::Result::Continue; |
| } |
| |
| // static |
| int GLES1Renderer::VertexArrayIndex(ClientVertexArrayType type, const GLES1State &gles1) |
| { |
| switch (type) |
| { |
| case ClientVertexArrayType::Vertex: |
| return kVertexAttribIndex; |
| case ClientVertexArrayType::Normal: |
| return kNormalAttribIndex; |
| case ClientVertexArrayType::Color: |
| return kColorAttribIndex; |
| case ClientVertexArrayType::PointSize: |
| return kPointSizeAttribIndex; |
| case ClientVertexArrayType::TextureCoord: |
| return kTextureCoordAttribIndexBase + gles1.getClientTextureUnit(); |
| default: |
| UNREACHABLE(); |
| return 0; |
| } |
| } |
| |
| // static |
| int GLES1Renderer::TexCoordArrayIndex(unsigned int unit) |
| { |
| return kTextureCoordAttribIndexBase + unit; |
| } |
| |
| void GLES1Renderer::drawTexture(Context *context, |
| State *glState, |
| float x, |
| float y, |
| float z, |
| float width, |
| float height) |
| { |
| |
| // get viewport |
| const gl::Rectangle &viewport = glState->getViewport(); |
| |
| // Translate from viewport to NDC for feeding the shader. |
| // Recenter, rescale. (e.g., [0, 0, 1080, 1920] -> [-1, -1, 1, 1]) |
| float xNdc = scaleScreenCoordinateToNdc(x, static_cast<GLfloat>(viewport.width)); |
| float yNdc = scaleScreenCoordinateToNdc(y, static_cast<GLfloat>(viewport.height)); |
| float wNdc = scaleScreenDimensionToNdc(width, static_cast<GLfloat>(viewport.width)); |
| float hNdc = scaleScreenDimensionToNdc(height, static_cast<GLfloat>(viewport.height)); |
| |
| float zNdc = 2.0f * clamp(z, 0.0f, 1.0f) - 1.0f; |
| |
| mDrawTextureCoords[0] = xNdc; |
| mDrawTextureCoords[1] = yNdc; |
| mDrawTextureCoords[2] = zNdc; |
| |
| mDrawTextureDims[0] = wNdc; |
| mDrawTextureDims[1] = hNdc; |
| |
| mDrawTextureEnabled = true; |
| |
| AttributesMask prevAttributesMask = glState->gles1().getVertexArraysAttributeMask(); |
| |
| setAttributesEnabled(context, glState, AttributesMask()); |
| |
| glState->gles1().setAllDirty(); |
| |
| context->drawArrays(PrimitiveMode::Triangles, 0, 6); |
| |
| setAttributesEnabled(context, glState, prevAttributesMask); |
| |
| mDrawTextureEnabled = false; |
| } |
| |
| Shader *GLES1Renderer::getShader(GLuint handle) const |
| { |
| return mShaderPrograms->getShader(handle); |
| } |
| |
| Program *GLES1Renderer::getProgram(GLuint handle) const |
| { |
| return mShaderPrograms->getProgram(handle); |
| } |
| |
| angle::Result GLES1Renderer::compileShader(Context *context, |
| ShaderType shaderType, |
| const char *src, |
| GLuint *shaderOut) |
| { |
| rx::ContextImpl *implementation = context->getImplementation(); |
| const Limitations &limitations = implementation->getNativeLimitations(); |
| |
| GLuint shader = mShaderPrograms->createShader(implementation, limitations, shaderType); |
| |
| Shader *shaderObject = getShader(shader); |
| ANGLE_CHECK(context, shaderObject, "Missing shader object", GL_INVALID_OPERATION); |
| |
| shaderObject->setSource(1, &src, nullptr); |
| shaderObject->compile(context); |
| |
| *shaderOut = shader; |
| |
| if (!shaderObject->isCompiled()) |
| { |
| GLint infoLogLength = shaderObject->getInfoLogLength(); |
| std::vector<char> infoLog(infoLogLength, 0); |
| shaderObject->getInfoLog(infoLogLength - 1, nullptr, infoLog.data()); |
| |
| ERR() << "Internal GLES 1 shader compile failed. Info log: " << infoLog.data(); |
| ANGLE_CHECK(context, false, "GLES1Renderer shader compile failed.", GL_INVALID_OPERATION); |
| return angle::Result::Stop; |
| } |
| |
| return angle::Result::Continue; |
| } |
| |
| angle::Result GLES1Renderer::linkProgram(Context *context, |
| State *glState, |
| GLuint vertexShader, |
| GLuint fragmentShader, |
| const std::unordered_map<GLint, std::string> &attribLocs, |
| GLuint *programOut) |
| { |
| GLuint program = mShaderPrograms->createProgram(context->getImplementation()); |
| |
| Program *programObject = getProgram(program); |
| ANGLE_CHECK(context, programObject, "Missing program object", GL_INVALID_OPERATION); |
| |
| *programOut = program; |
| |
| programObject->attachShader(getShader(vertexShader)); |
| programObject->attachShader(getShader(fragmentShader)); |
| |
| for (auto it : attribLocs) |
| { |
| GLint index = it.first; |
| const std::string &name = it.second; |
| programObject->bindAttributeLocation(index, name.c_str()); |
| } |
| |
| ANGLE_TRY(programObject->link(context)); |
| programObject->resolveLink(context); |
| |
| ANGLE_TRY(glState->onProgramExecutableChange(context, programObject)); |
| |
| if (!programObject->isLinked()) |
| { |
| GLint infoLogLength = programObject->getInfoLogLength(); |
| std::vector<char> infoLog(infoLogLength, 0); |
| programObject->getInfoLog(infoLogLength - 1, nullptr, infoLog.data()); |
| |
| ERR() << "Internal GLES 1 shader link failed. Info log: " << infoLog.data(); |
| ANGLE_CHECK(context, false, "GLES1Renderer program link failed.", GL_INVALID_OPERATION); |
| return angle::Result::Stop; |
| } |
| |
| programObject->detachShader(context, getShader(vertexShader)); |
| programObject->detachShader(context, getShader(fragmentShader)); |
| |
| return angle::Result::Continue; |
| } |
| |
| angle::Result GLES1Renderer::initializeRendererProgram(Context *context, State *glState) |
| { |
| if (mRendererProgramInitialized) |
| { |
| return angle::Result::Continue; |
| } |
| |
| mShaderPrograms = new ShaderProgramManager(); |
| |
| GLuint vertexShader; |
| GLuint fragmentShader; |
| |
| ANGLE_TRY(compileShader(context, ShaderType::Vertex, kGLES1DrawVShader, &vertexShader)); |
| |
| std::stringstream fragmentStream; |
| fragmentStream << kGLES1DrawFShaderHeader; |
| fragmentStream << kGLES1DrawFShaderUniformDefs; |
| fragmentStream << kGLES1DrawFShaderFunctions; |
| fragmentStream << kGLES1DrawFShaderMultitexturing; |
| fragmentStream << kGLES1DrawFShaderMain; |
| |
| ANGLE_TRY(compileShader(context, ShaderType::Fragment, fragmentStream.str().c_str(), |
| &fragmentShader)); |
| |
| std::unordered_map<GLint, std::string> attribLocs; |
| |
| attribLocs[(GLint)kVertexAttribIndex] = "pos"; |
| attribLocs[(GLint)kNormalAttribIndex] = "normal"; |
| attribLocs[(GLint)kColorAttribIndex] = "color"; |
| attribLocs[(GLint)kPointSizeAttribIndex] = "pointsize"; |
| |
| for (int i = 0; i < kTexUnitCount; i++) |
| { |
| std::stringstream ss; |
| ss << "texcoord" << i; |
| attribLocs[kTextureCoordAttribIndexBase + i] = ss.str(); |
| } |
| |
| ANGLE_TRY(linkProgram(context, glState, vertexShader, fragmentShader, attribLocs, |
| &mProgramState.program)); |
| |
| mShaderPrograms->deleteShader(context, vertexShader); |
| mShaderPrograms->deleteShader(context, fragmentShader); |
| |
| Program *programObject = getProgram(mProgramState.program); |
| |
| mProgramState.projMatrixLoc = programObject->getUniformLocation("projection"); |
| mProgramState.modelviewMatrixLoc = programObject->getUniformLocation("modelview"); |
| mProgramState.textureMatrixLoc = programObject->getUniformLocation("texture_matrix"); |
| mProgramState.modelviewInvTrLoc = programObject->getUniformLocation("modelview_invtr"); |
| |
| for (int i = 0; i < kTexUnitCount; i++) |
| { |
| std::stringstream ss2d; |
| std::stringstream sscube; |
| |
| ss2d << "tex_sampler" << i; |
| sscube << "tex_cube_sampler" << i; |
| |
| mProgramState.tex2DSamplerLocs[i] = programObject->getUniformLocation(ss2d.str().c_str()); |
| mProgramState.texCubeSamplerLocs[i] = |
| programObject->getUniformLocation(sscube.str().c_str()); |
| } |
| |
| mProgramState.enableTexture2DLoc = programObject->getUniformLocation("enable_texture_2d"); |
| mProgramState.enableTextureCubeMapLoc = |
| programObject->getUniformLocation("enable_texture_cube_map"); |
| |
| mProgramState.textureFormatLoc = programObject->getUniformLocation("texture_format"); |
| mProgramState.textureEnvModeLoc = programObject->getUniformLocation("texture_env_mode"); |
| mProgramState.combineRgbLoc = programObject->getUniformLocation("combine_rgb"); |
| mProgramState.combineAlphaLoc = programObject->getUniformLocation("combine_alpha"); |
| mProgramState.src0rgbLoc = programObject->getUniformLocation("src0_rgb"); |
| mProgramState.src0alphaLoc = programObject->getUniformLocation("src0_alpha"); |
| mProgramState.src1rgbLoc = programObject->getUniformLocation("src1_rgb"); |
| mProgramState.src1alphaLoc = programObject->getUniformLocation("src1_alpha"); |
| mProgramState.src2rgbLoc = programObject->getUniformLocation("src2_rgb"); |
| mProgramState.src2alphaLoc = programObject->getUniformLocation("src2_alpha"); |
| mProgramState.op0rgbLoc = programObject->getUniformLocation("op0_rgb"); |
| mProgramState.op0alphaLoc = programObject->getUniformLocation("op0_alpha"); |
| mProgramState.op1rgbLoc = programObject->getUniformLocation("op1_rgb"); |
| mProgramState.op1alphaLoc = programObject->getUniformLocation("op1_alpha"); |
| mProgramState.op2rgbLoc = programObject->getUniformLocation("op2_rgb"); |
| mProgramState.op2alphaLoc = programObject->getUniformLocation("op2_alpha"); |
| mProgramState.textureEnvColorLoc = programObject->getUniformLocation("texture_env_color"); |
| mProgramState.rgbScaleLoc = programObject->getUniformLocation("texture_env_rgb_scale"); |
| mProgramState.alphaScaleLoc = programObject->getUniformLocation("texture_env_alpha_scale"); |
| mProgramState.pointSpriteCoordReplaceLoc = |
| programObject->getUniformLocation("point_sprite_coord_replace"); |
| |
| mProgramState.enableAlphaTestLoc = programObject->getUniformLocation("enable_alpha_test"); |
| mProgramState.alphaFuncLoc = programObject->getUniformLocation("alpha_func"); |
| mProgramState.alphaTestRefLoc = programObject->getUniformLocation("alpha_test_ref"); |
| |
| mProgramState.shadeModelFlatLoc = programObject->getUniformLocation("shade_model_flat"); |
| mProgramState.enableLightingLoc = programObject->getUniformLocation("enable_lighting"); |
| mProgramState.enableRescaleNormalLoc = |
| programObject->getUniformLocation("enable_rescale_normal"); |
| mProgramState.enableNormalizeLoc = programObject->getUniformLocation("enable_normalize"); |
| mProgramState.enableColorMaterialLoc = |
| programObject->getUniformLocation("enable_color_material"); |
| |
| mProgramState.materialAmbientLoc = programObject->getUniformLocation("material_ambient"); |
| mProgramState.materialDiffuseLoc = programObject->getUniformLocation("material_diffuse"); |
| mProgramState.materialSpecularLoc = programObject->getUniformLocation("material_specular"); |
| mProgramState.materialEmissiveLoc = programObject->getUniformLocation("material_emissive"); |
| mProgramState.materialSpecularExponentLoc = |
| programObject->getUniformLocation("material_specular_exponent"); |
| |
| mProgramState.lightModelSceneAmbientLoc = |
| programObject->getUniformLocation("light_model_scene_ambient"); |
| mProgramState.lightModelTwoSidedLoc = |
| programObject->getUniformLocation("light_model_two_sided"); |
| |
| mProgramState.lightEnablesLoc = programObject->getUniformLocation("light_enables"); |
| mProgramState.lightAmbientsLoc = programObject->getUniformLocation("light_ambients"); |
| mProgramState.lightDiffusesLoc = programObject->getUniformLocation("light_diffuses"); |
| mProgramState.lightSpecularsLoc = programObject->getUniformLocation("light_speculars"); |
| mProgramState.lightPositionsLoc = programObject->getUniformLocation("light_positions"); |
| mProgramState.lightDirectionsLoc = programObject->getUniformLocation("light_directions"); |
| mProgramState.lightSpotlightExponentsLoc = |
| programObject->getUniformLocation("light_spotlight_exponents"); |
| mProgramState.lightSpotlightCutoffAnglesLoc = |
| programObject->getUniformLocation("light_spotlight_cutoff_angles"); |
| mProgramState.lightAttenuationConstsLoc = |
| programObject->getUniformLocation("light_attenuation_consts"); |
| mProgramState.lightAttenuationLinearsLoc = |
| programObject->getUniformLocation("light_attenuation_linears"); |
| mProgramState.lightAttenuationQuadraticsLoc = |
| programObject->getUniformLocation("light_attenuation_quadratics"); |
| |
| mProgramState.fogEnableLoc = programObject->getUniformLocation("enable_fog"); |
| mProgramState.fogModeLoc = programObject->getUniformLocation("fog_mode"); |
| mProgramState.fogDensityLoc = programObject->getUniformLocation("fog_density"); |
| mProgramState.fogStartLoc = programObject->getUniformLocation("fog_start"); |
| mProgramState.fogEndLoc = programObject->getUniformLocation("fog_end"); |
| mProgramState.fogColorLoc = programObject->getUniformLocation("fog_color"); |
| |
| mProgramState.enableClipPlanesLoc = programObject->getUniformLocation("enable_clip_planes"); |
| mProgramState.clipPlaneEnablesLoc = programObject->getUniformLocation("clip_plane_enables"); |
| mProgramState.clipPlanesLoc = programObject->getUniformLocation("clip_planes"); |
| |
| mProgramState.pointRasterizationLoc = programObject->getUniformLocation("point_rasterization"); |
| mProgramState.pointSizeMinLoc = programObject->getUniformLocation("point_size_min"); |
| mProgramState.pointSizeMaxLoc = programObject->getUniformLocation("point_size_max"); |
| mProgramState.pointDistanceAttenuationLoc = |
| programObject->getUniformLocation("point_distance_attenuation"); |
| mProgramState.pointSpriteEnabledLoc = programObject->getUniformLocation("point_sprite_enabled"); |
| |
| mProgramState.enableDrawTextureLoc = programObject->getUniformLocation("enable_draw_texture"); |
| mProgramState.drawTextureCoordsLoc = programObject->getUniformLocation("draw_texture_coords"); |
| mProgramState.drawTextureDimsLoc = programObject->getUniformLocation("draw_texture_dims"); |
| mProgramState.drawTextureNormalizedCropRectLoc = |
| programObject->getUniformLocation("draw_texture_normalized_crop_rect"); |
| |
| ANGLE_TRY(glState->setProgram(context, programObject)); |
| |
| for (int i = 0; i < kTexUnitCount; i++) |
| { |
| setUniform1i(context, programObject, mProgramState.tex2DSamplerLocs[i], i); |
| setUniform1i(context, programObject, mProgramState.texCubeSamplerLocs[i], |
| i + kTexUnitCount); |
| } |
| |
| glState->setObjectDirty(GL_PROGRAM); |
| |
| mRendererProgramInitialized = true; |
| return angle::Result::Continue; |
| } |
| |
| void GLES1Renderer::setUniform1i(Context *context, Program *programObject, GLint loc, GLint value) |
| { |
| if (loc == -1) |
| return; |
| programObject->setUniform1iv(context, loc, 1, &value); |
| } |
| |
| void GLES1Renderer::setUniform1iv(Context *context, |
| Program *programObject, |
| GLint loc, |
| GLint count, |
| const GLint *value) |
| { |
| if (loc == -1) |
| return; |
| programObject->setUniform1iv(context, loc, count, value); |
| } |
| |
| void GLES1Renderer::setUniformMatrix4fv(Program *programObject, |
| GLint loc, |
| GLint count, |
| GLboolean transpose, |
| const GLfloat *value) |
| { |
| if (loc == -1) |
| return; |
| programObject->setUniformMatrix4fv(loc, count, transpose, value); |
| } |
| |
| void GLES1Renderer::setUniform4fv(Program *programObject, |
| GLint loc, |
| GLint count, |
| const GLfloat *value) |
| { |
| if (loc == -1) |
| return; |
| programObject->setUniform4fv(loc, count, value); |
| } |
| |
| void GLES1Renderer::setUniform3fv(Program *programObject, |
| GLint loc, |
| GLint count, |
| const GLfloat *value) |
| { |
| if (loc == -1) |
| return; |
| programObject->setUniform3fv(loc, count, value); |
| } |
| |
| void GLES1Renderer::setUniform2fv(Program *programObject, |
| GLint loc, |
| GLint count, |
| const GLfloat *value) |
| { |
| if (loc == -1) |
| return; |
| programObject->setUniform2fv(loc, count, value); |
| } |
| |
| void GLES1Renderer::setUniform1f(Program *programObject, GLint loc, GLfloat value) |
| { |
| if (loc == -1) |
| return; |
| programObject->setUniform1fv(loc, 1, &value); |
| } |
| |
| void GLES1Renderer::setUniform1fv(Program *programObject, |
| GLint loc, |
| GLint count, |
| const GLfloat *value) |
| { |
| if (loc == -1) |
| return; |
| programObject->setUniform1fv(loc, count, value); |
| } |
| |
| void GLES1Renderer::setAttributesEnabled(Context *context, State *glState, AttributesMask mask) |
| { |
| GLES1State &gles1 = glState->gles1(); |
| |
| ClientVertexArrayType nonTexcoordArrays[] = { |
| ClientVertexArrayType::Vertex, |
| ClientVertexArrayType::Normal, |
| ClientVertexArrayType::Color, |
| ClientVertexArrayType::PointSize, |
| }; |
| |
| for (const ClientVertexArrayType attrib : nonTexcoordArrays) |
| { |
| int index = VertexArrayIndex(attrib, glState->gles1()); |
| |
| if (mask.test(index)) |
| { |
| gles1.setClientStateEnabled(attrib, true); |
| context->enableVertexAttribArray(index); |
| } |
| else |
| { |
| gles1.setClientStateEnabled(attrib, false); |
| context->disableVertexAttribArray(index); |
| } |
| } |
| |
| for (unsigned int i = 0; i < kTexUnitCount; i++) |
| { |
| int index = TexCoordArrayIndex(i); |
| |
| if (mask.test(index)) |
| { |
| gles1.setTexCoordArrayEnabled(i, true); |
| context->enableVertexAttribArray(index); |
| } |
| else |
| { |
| gles1.setTexCoordArrayEnabled(i, false); |
| context->disableVertexAttribArray(index); |
| } |
| } |
| } |
| |
| } // namespace gl |
