static GrGLuint load_shader(const GrGLInterface* gl, const char* shaderSrc, GrGLenum type) {
GrGLuint shader;
// Create the shader object
GR_GL_CALL_RET(gl, shader, CreateShader(type));
// Load the shader source
GR_GL_CALL(gl, ShaderSource(shader, 1, &shaderSrc, NULL));
// Compile the shader
GR_GL_CALL(gl, CompileShader(shader));
// Check for compile time errors
GrGLint success;
GrGLchar infoLog[512];
GR_GL_CALL(gl, GetShaderiv(shader, GR_GL_COMPILE_STATUS, &success));
if (!success)
{
GR_GL_CALL(gl, GetShaderInfoLog(shader, 512, NULL, infoLog));
SkDebugf("ERROR::SHADER::COMPLIATION_FAILED: %s\n", infoLog);
}
return shader;
}
void GLGpuPosInstancedArraysBench::onDraw(const int loops, SkCanvas* canvas) {
const GrGLInterface* gl = get_interface(canvas);
if (!gl) {
return;
}
GR_GL_CALL(gl, DrawArraysInstanced(GR_GL_TRIANGLES, 0, 6, fNumQuads));
#ifdef DUMP_IMAGES
const char* filename = "out.png";
dump_image(gl, kScreenWidth, kScreenHeight, filename);
#endif
SkFAIL("done\n");
}
void GrGLAttribArrayState::set(const GrGpuGL* gpu,
int index,
GrGLVertexBuffer* buffer,
GrGLint size,
GrGLenum type,
GrGLboolean normalized,
GrGLsizei stride,
GrGLvoid* offset) {
SkASSERT(index >= 0 && index < fAttribArrayStates.count());
AttribArrayState* array = &fAttribArrayStates[index];
if (!array->fEnableIsValid || !array->fEnabled) {
GR_GL_CALL(gpu->glInterface(), EnableVertexAttribArray(index));
array->fEnableIsValid = true;
array->fEnabled = true;
}
if (!array->fAttribPointerIsValid ||
array->fVertexBufferID != buffer->bufferID() ||
array->fSize != size ||
array->fNormalized != normalized ||
array->fStride != stride ||
array->fOffset != offset) {
buffer->bind();
GR_GL_CALL(gpu->glInterface(), VertexAttribPointer(index,
size,
type,
normalized,
stride,
offset));
array->fAttribPointerIsValid = true;
array->fVertexBufferID = buffer->bufferID();
array->fSize = size;
array->fNormalized = normalized;
array->fStride = stride;
array->fOffset = offset;
}
}
void GLVec4ScalarBench::glDraw(int loops, const GrGLContext* ctx) {
const GrGLInterface* gl = ctx->interface();
for (int i = 0; i < loops; i++) {
GR_GL_CALL(gl, DrawArrays(GR_GL_TRIANGLES, 0, kVerticesPerTri * kNumTriPerDraw));
}
// using -w when running nanobench will not produce correct images;
// changing this to #if 1 will write the correct images to the Skia folder.
#if 0
SkString filename("out");
filename.appendf("_%s.png", this->getName());
DumpImage(gl, kScreenWidth, kScreenHeight, filename.c_str());
#endif
}
void GrGLAttribArrayState::disableUnusedArrays(const GrGpuGL* gpu, uint64_t usedMask) {
int count = fAttribArrayStates.count();
for (int i = 0; i < count; ++i) {
if (!(usedMask & 0x1)) {
if (!fAttribArrayStates[i].fEnableIsValid || fAttribArrayStates[i].fEnabled) {
GR_GL_CALL(gpu->glInterface(), DisableVertexAttribArray(i));
fAttribArrayStates[i].fEnableIsValid = true;
fAttribArrayStates[i].fEnabled = false;
}
} else {
SkASSERT(fAttribArrayStates[i].fEnableIsValid && fAttribArrayStates[i].fEnabled);
}
// if the count is greater than 64 then this will become 0 and we will disable arrays 64+.
usedMask >>= 1;
}
}
bool GrGLRenderTarget::completeStencilAttachment() {
GrGLGpu* gpu = this->getGLGpu();
const GrGLInterface* interface = gpu->glInterface();
GrStencilAttachment* stencil = this->renderTargetPriv().getStencilAttachment();
if (nullptr == stencil) {
GR_GL_CALL(interface, FramebufferRenderbuffer(GR_GL_FRAMEBUFFER,
GR_GL_STENCIL_ATTACHMENT,
GR_GL_RENDERBUFFER, 0));
GR_GL_CALL(interface, FramebufferRenderbuffer(GR_GL_FRAMEBUFFER,
GR_GL_DEPTH_ATTACHMENT,
GR_GL_RENDERBUFFER, 0));
#ifdef SK_DEBUG
if (kChromium_GrGLDriver != gpu->glContext().driver()) {
// This check can cause problems in Chromium if the context has been asynchronously
// abandoned (see skbug.com/5200)
GrGLenum status;
GR_GL_CALL_RET(interface, status, CheckFramebufferStatus(GR_GL_FRAMEBUFFER));
SkASSERT(GR_GL_FRAMEBUFFER_COMPLETE == status);
}
#endif
return true;
} else {
const GrGLStencilAttachment* glStencil = static_cast<const GrGLStencilAttachment*>(stencil);
GrGLuint rb = glStencil->renderbufferID();
gpu->invalidateBoundRenderTarget();
gpu->stats()->incRenderTargetBinds();
GR_GL_CALL(interface, BindFramebuffer(GR_GL_FRAMEBUFFER, this->renderFBOID()));
GR_GL_CALL(interface, FramebufferRenderbuffer(GR_GL_FRAMEBUFFER,
GR_GL_STENCIL_ATTACHMENT,
GR_GL_RENDERBUFFER, rb));
if (glStencil->format().fPacked) {
GR_GL_CALL(interface, FramebufferRenderbuffer(GR_GL_FRAMEBUFFER,
GR_GL_DEPTH_ATTACHMENT,
GR_GL_RENDERBUFFER, rb));
} else {
GR_GL_CALL(interface, FramebufferRenderbuffer(GR_GL_FRAMEBUFFER,
GR_GL_DEPTH_ATTACHMENT,
GR_GL_RENDERBUFFER, 0));
}
#ifdef SK_DEBUG
if (kChromium_GrGLDriver != gpu->glContext().driver()) {
// This check can cause problems in Chromium if the context has been asynchronously
// abandoned (see skbug.com/5200)
GrGLenum status;
GR_GL_CALL_RET(interface, status, CheckFramebufferStatus(GR_GL_FRAMEBUFFER));
SkASSERT(GR_GL_FRAMEBUFFER_COMPLETE == status);
}
#endif
return true;
}
}
void GLVec4ScalarBench::setup(const GrGLContext* ctx) {
const GrGLInterface* gl = ctx->interface();
if (!gl) {
SkFAIL("GL interface is nullptr in setup()!\n");
}
fFboTextureId = SetupFramebuffer(gl, kScreenWidth, kScreenHeight);
fProgram = this->setupShader(ctx);
int index = 0;
SkMatrix viewMatrices[kNumTriPerDraw];
setup_matrices(kNumTriPerDraw, [&index, &viewMatrices](const SkMatrix& m) {
viewMatrices[index++] = m;
});
this->setupSingleVbo(gl, viewMatrices);
GR_GL_CALL(gl, UseProgram(fProgram));
}
void GrGLBufferImpl::unmap(GrGpuGL* gpu) {
VALIDATE();
SkASSERT(this->isMapped());
if (0 != fDesc.fID) {
switch (gpu->glCaps().mapBufferType()) {
case GrGLCaps::kNone_MapBufferType:
SkDEBUGFAIL("Shouldn't get here.");
return;
case GrGLCaps::kMapBuffer_MapBufferType: // fall through
case GrGLCaps::kMapBufferRange_MapBufferType:
this->bind(gpu);
GL_CALL(gpu, UnmapBuffer(fBufferType));
break;
case GrGLCaps::kChromium_MapBufferType:
this->bind(gpu);
GR_GL_CALL(gpu->glInterface(), UnmapBufferSubData(fMapPtr));
break;
}
}
fMapPtr = NULL;
}
static void cleanup(SkGLContext* glctx0, GrGLuint texID0, SkGLContext* glctx1, GrContext* grctx1,
const GrGLTextureInfo* grbackendtex1, GrEGLImage image1) {
if (glctx1) {
glctx1->makeCurrent();
if (grctx1) {
if (grbackendtex1) {
GrGLGpu* gpu1 = static_cast<GrGLGpu*>(grctx1->getGpu());
GrBackendObject handle = reinterpret_cast<GrBackendObject>(grbackendtex1);
gpu1->deleteTestingOnlyBackendTexture(handle, false);
}
grctx1->unref();
}
if (GR_EGL_NO_IMAGE != image1) {
glctx1->destroyEGLImage(image1);
}
}
glctx0->makeCurrent();
if (texID0) {
GR_GL_CALL(glctx0->gl(), DeleteTextures(1, &texID0));
}
}
void GrGLPath::InitPathObjectPathData(GrGLGpu* gpu,
GrGLuint pathID,
const SkPath& skPath) {
SkASSERT(!skPath.isEmpty());
#ifdef SK_SCALAR_IS_FLOAT
// This branch does type punning, converting SkPoint* to GrGLfloat*.
if ((skPath.getSegmentMasks() & SkPath::kConic_SegmentMask) == 0) {
int verbCnt = skPath.countVerbs();
int pointCnt = skPath.countPoints();
int coordCnt = pointCnt * 2;
SkSTArray<16, GrGLubyte, true> pathCommands(verbCnt);
SkSTArray<16, GrGLfloat, true> pathCoords(coordCnt);
static_assert(sizeof(SkPoint) == sizeof(GrGLfloat) * 2, "sk_point_not_two_floats");
pathCommands.resize_back(verbCnt);
pathCoords.resize_back(coordCnt);
skPath.getPoints(reinterpret_cast<SkPoint*>(&pathCoords[0]), pointCnt);
skPath.getVerbs(&pathCommands[0], verbCnt);
SkDEBUGCODE(int verbCoordCnt = 0);
for (int i = 0; i < verbCnt; ++i) {
SkPath::Verb v = static_cast<SkPath::Verb>(pathCommands[i]);
pathCommands[i] = verb_to_gl_path_cmd(v);
SkDEBUGCODE(verbCoordCnt += num_coords(v));
}
SkASSERT(verbCnt == pathCommands.count());
SkASSERT(verbCoordCnt == pathCoords.count());
SkDEBUGCODE(verify_floats(&pathCoords[0], pathCoords.count()));
GR_GL_CALL(gpu->glInterface(), PathCommands(pathID, pathCommands.count(), &pathCommands[0],
pathCoords.count(), GR_GL_FLOAT,
&pathCoords[0]));
return;
}
#endif
SkAssertResult(init_path_object_for_general_path<false>(gpu, pathID, skPath));
}
GrGLint SkGLContext::createTextureRectangle(int width, int height, GrGLenum internalFormat,
GrGLenum externalFormat, GrGLenum externalType,
GrGLvoid* data) {
if (!(kGL_GrGLStandard == fGL->fStandard && GrGLGetVersion(fGL) >= GR_GL_VER(3, 2)) &&
!fGL->fExtensions.has("GL_ARB_texture_rectangle")) {
return 0;
}
GrGLuint id;
GR_GL_CALL(fGL, GenTextures(1, &id));
GR_GL_CALL(fGL, BindTexture(GR_GL_TEXTURE_RECTANGLE, id));
GR_GL_CALL(fGL, TexParameteri(GR_GL_TEXTURE_RECTANGLE, GR_GL_TEXTURE_MAG_FILTER,
GR_GL_NEAREST));
GR_GL_CALL(fGL, TexParameteri(GR_GL_TEXTURE_RECTANGLE, GR_GL_TEXTURE_MIN_FILTER,
GR_GL_NEAREST));
GR_GL_CALL(fGL, TexParameteri(GR_GL_TEXTURE_RECTANGLE, GR_GL_TEXTURE_WRAP_S,
GR_GL_CLAMP_TO_EDGE));
GR_GL_CALL(fGL, TexParameteri(GR_GL_TEXTURE_RECTANGLE, GR_GL_TEXTURE_WRAP_T,
GR_GL_CLAMP_TO_EDGE));
GR_GL_CALL(fGL, TexImage2D(GR_GL_TEXTURE_RECTANGLE, 0, internalFormat, width, height, 0,
externalFormat, externalType, data));
return id;
}
void GLVec4ScalarBench::setupSingleVbo(const GrGLInterface* gl, const SkMatrix* viewMatrices) {
// triangles drawn will alternate between the top-right half of the screen and the bottom-left
// half of the screen
Vertex vertices[kVerticesPerTri * kNumTriPerDraw];
for (uint32_t i = 0; i < kNumTriPerDraw; i++) {
Vertex* v = &vertices[i * kVerticesPerTri];
if (i % 2 == 0) {
v[0].fPositions.set(-1.0f, -1.0f);
v[1].fPositions.set( 1.0f, -1.0f);
v[2].fPositions.set( 1.0f, 1.0f);
} else {
v[0].fPositions.set(-1.0f, -1.0f);
v[1].fPositions.set( 1.0f, 1.0f);
v[2].fPositions.set( -1.0f, 1.0f);
}
SkPoint* position = reinterpret_cast<SkPoint*>(v);
viewMatrices[i].mapPointsWithStride(position, sizeof(Vertex), kVerticesPerTri);
GrGLfloat color[3] = {1.0f, 0.0f, 1.0f};
for (uint32_t j = 0; j < kVerticesPerTri; j++) {
v->fColors[0] = color[0];
v->fColors[1] = color[1];
v->fColors[2] = color[2];
v++;
}
}
GR_GL_CALL(gl, GenBuffers(1, &fVboId));
GR_GL_CALL(gl, BindBuffer(GR_GL_ARRAY_BUFFER, fVboId));
GR_GL_CALL(gl, EnableVertexAttribArray(0));
GR_GL_CALL(gl, EnableVertexAttribArray(1));
GR_GL_CALL(gl, VertexAttribPointer(0, 2, GR_GL_FLOAT, GR_GL_FALSE, sizeof(Vertex),
(GrGLvoid*)0));
GR_GL_CALL(gl, VertexAttribPointer(1, 3, GR_GL_FLOAT, GR_GL_FALSE, sizeof(Vertex),
(GrGLvoid*)(sizeof(SkPoint))));
GR_GL_CALL(gl, BufferData(GR_GL_ARRAY_BUFFER, sizeof(vertices), vertices, GR_GL_STATIC_DRAW));
}
void GLCpuPosInstancedArraysBench::setup(const GrGLContext* ctx) {
const GrGLInterface* gl = ctx->interface();
fTexture = SetupFramebuffer(gl, kScreenWidth, kScreenHeight);
fProgram = this->setupShader(ctx);
// setup matrices
int index = 0;
SkMatrix viewMatrices[kNumTri];
setup_matrices(kNumTri, [&index, &viewMatrices](const SkMatrix& m) {
viewMatrices[index++] = m;
});
// setup VAO
GR_GL_CALL(gl, GenVertexArrays(1, &fVAO));
GR_GL_CALL(gl, BindVertexArray(fVAO));
switch (fVboSetup) {
case kUseOne_VboSetup:
this->setupSingleVbo(gl, viewMatrices);
break;
case kUseTwo_VboSetup:
this->setupDoubleVbo(gl, viewMatrices);
break;
case kUseInstance_VboSetup:
this->setupInstanceVbo(gl, viewMatrices);
break;
}
// clear screen
GR_GL_CALL(gl, ClearColor(0.03f, 0.03f, 0.03f, 1.0f));
GR_GL_CALL(gl, Clear(GR_GL_COLOR_BUFFER_BIT));
// set us up to draw
GR_GL_CALL(gl, UseProgram(fProgram));
GR_GL_CALL(gl, BindVertexArray(fVAO));
}
void GLTestContext::submit() {
if (fGL) {
GR_GL_CALL(fGL.get(), Flush());
}
}
void GLTestContext::finish() {
if (fGL) {
GR_GL_CALL(fGL.get(), Finish());
}
}
void GrGLResetRowLength(const GrGLInterface* gl) {
if (gl->supportsDesktop()) {
GR_GL_CALL(gl, PixelStorei(GR_GL_UNPACK_ROW_LENGTH, 0));
}
}
void GrGLPath::InitPathObjectEmptyPath(GrGLGpu* gpu, GrGLuint pathID) {
GR_GL_CALL(gpu->glInterface(), PathCommands(pathID, 0, nullptr, 0, GR_GL_FLOAT, nullptr));
}
void GLCpuPosInstancedArraysBench::teardown(const GrGLInterface* gl) {
GR_GL_CALL(gl, DeleteProgram(fProgram));
GR_GL_CALL(gl, DeleteBuffers(fBuffers.count(), fBuffers.begin()));
GR_GL_CALL(gl, DeleteVertexArrays(1, &fVAO));
}
void GLGpuPosInstancedArraysBench::setup(const GrGLInterface* gl) {
setup_framebuffer(gl, kScreenWidth, kScreenHeight);
// compile and use shaders
GrGLint shaderProgram = compile_shader(gl, gpu_vertex_shader, fragment_shader);
// translations
int index = 0;
GrGLfloat viewMatrices[fNumQuads * fSkMatrixNumCells];
setup_matrices(fNumQuads, [&index, &viewMatrices](const SkMatrix& m) {
GrGLGetMatrix<3>(&viewMatrices[index], m);
index += fSkMatrixNumCells;
});
// Constants for our various shader programs
GrGLfloat quad_vertices[] = {
// Positions // Colors
-1.0f, 1.0f, 1.0f, 0.0f, 0.0f,
1.0f, -1.0f, 0.0f, 1.0f, 0.0f,
-1.0f, -1.0f, 0.0f, 0.0f, 1.0f,
-1.0f, 1.0f, 1.0f, 0.0f, 0.0f,
1.0f, -1.0f, 0.0f, 1.0f, 0.0f,
1.0f, 1.0f, 0.0f, 1.0f, 1.0f
};
// update vertex data
GrGLuint quadVAO, quadVBO;
GR_GL_CALL(gl, GenVertexArrays(1, &quadVAO));
GR_GL_CALL(gl, GenBuffers(1, &quadVBO));
GR_GL_CALL(gl, BindVertexArray(quadVAO));
GR_GL_CALL(gl, BindBuffer(GR_GL_ARRAY_BUFFER, quadVBO));
GR_GL_CALL(gl, EnableVertexAttribArray(0));
GR_GL_CALL(gl, VertexAttribPointer(0, 2, GR_GL_FLOAT, GR_GL_FALSE, 5 * sizeof(GrGLfloat), (GrGLvoid*)0));
GR_GL_CALL(gl, EnableVertexAttribArray(1));
GR_GL_CALL(gl, VertexAttribPointer(1, 3, GR_GL_FLOAT, GR_GL_FALSE, 5 * sizeof(GrGLfloat), (GrGLvoid*)(2 * sizeof(GrGLfloat))));
GR_GL_CALL(gl, BufferData(GR_GL_ARRAY_BUFFER, sizeof(quad_vertices), quad_vertices, GR_GL_STATIC_DRAW));
// Also set instance data
GrGLuint instanceVBO;
GR_GL_CALL(gl, GenBuffers(1, &instanceVBO));
GR_GL_CALL(gl, BindBuffer(GR_GL_ARRAY_BUFFER, instanceVBO));
GR_GL_CALL(gl, BufferData(GR_GL_ARRAY_BUFFER, sizeof(GrGLfloat) * fSkMatrixNumCells * fNumQuads,
&viewMatrices[0], GR_GL_STATIC_DRAW));
GR_GL_CALL(gl, EnableVertexAttribArray(2));
GR_GL_CALL(gl, EnableVertexAttribArray(3));
GR_GL_CALL(gl, EnableVertexAttribArray(4));
GR_GL_CALL(gl, VertexAttribPointer(2, 3, GR_GL_FLOAT, GR_GL_FALSE, 9 * sizeof(GrGLfloat), (GrGLvoid*)0));
GR_GL_CALL(gl, VertexAttribPointer(3, 3, GR_GL_FLOAT, GR_GL_FALSE, 9 * sizeof(GrGLfloat), (GrGLvoid*)(3 * sizeof(GrGLfloat))));
GR_GL_CALL(gl, VertexAttribPointer(4, 3, GR_GL_FLOAT, GR_GL_FALSE, 9 * sizeof(GrGLfloat), (GrGLvoid*)(6 * sizeof(GrGLfloat))));
GR_GL_CALL(gl, VertexAttribDivisor(2, 1));
GR_GL_CALL(gl, VertexAttribDivisor(3, 1));
GR_GL_CALL(gl, VertexAttribDivisor(4, 1));
// draw
GR_GL_CALL(gl, ClearColor(0.03f, 0.03f, 0.03f, 1.0f));
GR_GL_CALL(gl, Clear(GR_GL_COLOR_BUFFER_BIT));
// set us up to draw
GR_GL_CALL(gl, UseProgram(shaderProgram));
GR_GL_CALL(gl, BindVertexArray(quadVAO));
}
DEF_GPUTEST_FOR_GL_RENDERING_CONTEXTS(RectangleTexture, reporter, ctxInfo) {
GrContext* context = ctxInfo.grContext();
sk_gpu_test::GLTestContext* glContext = ctxInfo.glContext();
static const int kWidth = 13;
static const int kHeight = 13;
GrColor pixels[kWidth * kHeight];
for (int y = 0; y < kHeight; ++y) {
for (int x = 0; x < kWidth; ++x) {
pixels[y * kWidth + x] = y * kWidth + x;
}
}
for (int origin = 0; origin < 2; ++origin) {
GrGLuint rectTexID = glContext->createTextureRectangle(kWidth, kHeight, GR_GL_RGBA,
GR_GL_RGBA, GR_GL_UNSIGNED_BYTE,
pixels);
if (!rectTexID) {
return;
}
// Let GrContext know that we messed with the GL context directly.
context->resetContext();
// Wrap the rectangle texture ID in a GrTexture
GrGLTextureInfo rectangleInfo;
rectangleInfo.fID = rectTexID;
rectangleInfo.fTarget = GR_GL_TEXTURE_RECTANGLE;
GrBackendTextureDesc rectangleDesc;
rectangleDesc.fFlags = kRenderTarget_GrBackendTextureFlag;
rectangleDesc.fConfig = kRGBA_8888_GrPixelConfig;
rectangleDesc.fWidth = kWidth;
rectangleDesc.fHeight = kHeight;
rectangleDesc.fOrigin = origin ? kBottomLeft_GrSurfaceOrigin : kTopLeft_GrSurfaceOrigin;
rectangleDesc.fTextureHandle = reinterpret_cast<GrBackendObject>(&rectangleInfo);
GrColor refPixels[kWidth * kHeight];
bool flipRef = rectangleDesc.fOrigin == kBottomLeft_GrSurfaceOrigin;
for (int y = 0; y < kHeight; ++y) {
for (int x = 0; x < kWidth; ++x) {
int y0 = flipRef ? kHeight - y - 1 : y;
refPixels[y * kWidth + x] = pixels[y0 * kWidth + x];
}
}
SkAutoTUnref<GrTexture> rectangleTexture(
context->textureProvider()->wrapBackendTexture(rectangleDesc));
if (!rectangleTexture) {
ERRORF(reporter, "Error wrapping rectangle texture in GrTexture.");
GR_GL_CALL(glContext->gl(), DeleteTextures(1, &rectTexID));
continue;
}
test_read_pixels(reporter, context, rectangleTexture, refPixels);
test_copy_surface_src(reporter, context, rectangleTexture, refPixels);
test_copy_surface_dst(reporter, context, rectangleTexture);
test_write_pixels(reporter, context, rectangleTexture);
test_clear(reporter, context, rectangleTexture);
GR_GL_CALL(glContext->gl(), DeleteTextures(1, &rectTexID));
}
}
static GrGLuint compile_shader(const GrGLContext* ctx) {
const char* version = GrGLGetGLSLVersionDecl(*ctx);
// setup vertex shader
GrGLShaderVar aPosition("a_position", kVec2f_GrSLType, GrShaderVar::kAttribute_TypeModifier);
GrGLShaderVar aColor("a_color", kVec3f_GrSLType, GrShaderVar::kAttribute_TypeModifier);
GrGLShaderVar oColor("o_color", kVec3f_GrSLType, GrShaderVar::kVaryingOut_TypeModifier);
SkString vshaderTxt(version);
aPosition.appendDecl(*ctx, &vshaderTxt);
vshaderTxt.append(";\n");
aColor.appendDecl(*ctx, &vshaderTxt);
vshaderTxt.append(";\n");
oColor.appendDecl(*ctx, &vshaderTxt);
vshaderTxt.append(";\n");
vshaderTxt.append(
"void main()\n"
"{\n"
"gl_Position = vec4(a_position, 0.f, 1.f);\n"
"o_color = a_color;\n"
"}\n");
const GrGLInterface* gl = ctx->interface();
GrGLuint vertexShader = load_shader(gl, vshaderTxt.c_str(), GR_GL_VERTEX_SHADER);
// setup fragment shader
GrGLShaderVar oFragColor("o_FragColor", kVec4f_GrSLType, GrShaderVar::kOut_TypeModifier);
SkString fshaderTxt(version);
GrGLAppendGLSLDefaultFloatPrecisionDeclaration(kDefault_GrSLPrecision, gl->fStandard,
&fshaderTxt);
oColor.setTypeModifier(GrShaderVar::kVaryingIn_TypeModifier);
oColor.appendDecl(*ctx, &fshaderTxt);
fshaderTxt.append(";\n");
const char* fsOutName;
if (ctx->caps()->glslCaps()->mustDeclareFragmentShaderOutput()) {
oFragColor.appendDecl(*ctx, &fshaderTxt);
fshaderTxt.append(";\n");
fsOutName = oFragColor.c_str();
} else {
fsOutName = "gl_FragColor";
}
fshaderTxt.appendf(
"void main()\n"
"{\n"
"%s = vec4(o_color, 1.0f);\n"
"}\n", fsOutName);
GrGLuint fragmentShader = load_shader(gl, fshaderTxt.c_str(), GR_GL_FRAGMENT_SHADER);
GrGLint shaderProgram;
GR_GL_CALL_RET(gl, shaderProgram, CreateProgram());
GR_GL_CALL(gl, AttachShader(shaderProgram, vertexShader));
GR_GL_CALL(gl, AttachShader(shaderProgram, fragmentShader));
GR_GL_CALL(gl, LinkProgram(shaderProgram));
// Check for linking errors
GrGLint success;
GrGLchar infoLog[512];
GR_GL_CALL(gl, GetProgramiv(shaderProgram, GR_GL_LINK_STATUS, &success));
if (!success) {
GR_GL_CALL(gl, GetProgramInfoLog(shaderProgram, 512, NULL, infoLog));
SkDebugf("Linker Error: %s\n", infoLog);
}
GR_GL_CALL(gl, DeleteShader(vertexShader));
GR_GL_CALL(gl, DeleteShader(fragmentShader));
return shaderProgram;
}
void GrGLPath::InitPathObject(GrGLGpu* gpu,
GrGLuint pathID,
const SkPath& skPath,
const GrStrokeInfo& stroke) {
SkASSERT(!stroke.isDashed());
if (!skPath.isEmpty()) {
int verbCnt = skPath.countVerbs();
int pointCnt = skPath.countPoints();
int minCoordCnt = pointCnt * 2;
SkSTArray<16, GrGLubyte, true> pathCommands(verbCnt);
SkSTArray<16, GrGLfloat, true> pathCoords(minCoordCnt);
SkDEBUGCODE(int numCoords = 0);
if ((skPath.getSegmentMasks() & SkPath::kConic_SegmentMask) == 0) {
// This branch does type punning, converting SkPoint* to GrGLfloat*.
SK_COMPILE_ASSERT(sizeof(SkPoint) == sizeof(GrGLfloat) * 2, sk_point_not_two_floats);
// This branch does not convert with SkScalarToFloat.
#ifndef SK_SCALAR_IS_FLOAT
#error Need SK_SCALAR_IS_FLOAT.
#endif
pathCommands.resize_back(verbCnt);
pathCoords.resize_back(minCoordCnt);
skPath.getPoints(reinterpret_cast<SkPoint*>(&pathCoords[0]), pointCnt);
skPath.getVerbs(&pathCommands[0], verbCnt);
for (int i = 0; i < verbCnt; ++i) {
SkPath::Verb v = static_cast<SkPath::Verb>(pathCommands[i]);
pathCommands[i] = verb_to_gl_path_cmd(v);
SkDEBUGCODE(numCoords += num_coords(v));
}
} else {
SkPoint points[4];
SkPath::RawIter iter(skPath);
SkPath::Verb verb;
while ((verb = iter.next(points)) != SkPath::kDone_Verb) {
pathCommands.push_back(verb_to_gl_path_cmd(verb));
GrGLfloat coords[6];
int coordsForVerb;
switch (verb) {
case SkPath::kMove_Verb:
points_to_coords(points, 0, 1, coords);
coordsForVerb = 2;
break;
case SkPath::kLine_Verb:
points_to_coords(points, 1, 1, coords);
coordsForVerb = 2;
break;
case SkPath::kConic_Verb:
points_to_coords(points, 1, 2, coords);
coords[4] = SkScalarToFloat(iter.conicWeight());
coordsForVerb = 5;
break;
case SkPath::kQuad_Verb:
points_to_coords(points, 1, 2, coords);
coordsForVerb = 4;
break;
case SkPath::kCubic_Verb:
points_to_coords(points, 1, 3, coords);
coordsForVerb = 6;
break;
case SkPath::kClose_Verb:
continue;
default:
SkASSERT(false); // Not reached.
continue;
}
SkDEBUGCODE(numCoords += num_coords(verb));
pathCoords.push_back_n(coordsForVerb, coords);
}
}
SkASSERT(verbCnt == pathCommands.count());
SkASSERT(numCoords == pathCoords.count());
GR_GL_CALL(gpu->glInterface(), PathCommands(pathID, pathCommands.count(), &pathCommands[0],
pathCoords.count(), GR_GL_FLOAT, &pathCoords[0]));
} else {
GR_GL_CALL(gpu->glInterface(), PathCommands(pathID, 0, NULL, 0, GR_GL_FLOAT, NULL));
}
if (stroke.needToApply()) {
SkASSERT(!stroke.isHairlineStyle());
GR_GL_CALL(gpu->glInterface(),
PathParameterf(pathID, GR_GL_PATH_STROKE_WIDTH, SkScalarToFloat(stroke.getWidth())));
GR_GL_CALL(gpu->glInterface(),
PathParameterf(pathID, GR_GL_PATH_MITER_LIMIT, SkScalarToFloat(stroke.getMiter())));
GrGLenum join = join_to_gl_join(stroke.getJoin());
GR_GL_CALL(gpu->glInterface(), PathParameteri(pathID, GR_GL_PATH_JOIN_STYLE, join));
GrGLenum cap = cap_to_gl_cap(stroke.getCap());
GR_GL_CALL(gpu->glInterface(), PathParameteri(pathID, GR_GL_PATH_END_CAPS, cap));
GR_GL_CALL(gpu->glInterface(), PathParameterf(pathID, GR_GL_PATH_STROKE_BOUND, 0.02f));
}
}
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(EGLImageTest, reporter, context0, glCtx0) {
// Try to create a second GL context and then check if the contexts have necessary
// extensions to run this test.
if (kGLES_GrGLStandard != glCtx0->gl()->fStandard) {
return;
}
GrGLGpu* gpu0 = static_cast<GrGLGpu*>(context0->getGpu());
if (!gpu0->glCaps().glslCaps()->externalTextureSupport()) {
return;
}
SkAutoTDelete<SkGLContext> glCtx1 = glCtx0->createNew();
if (!glCtx1) {
return;
}
GrContext* context1 = GrContext::Create(kOpenGL_GrBackend, (GrBackendContext)glCtx1->gl());
const GrGLTextureInfo* backendTexture1 = nullptr;
GrEGLImage image = GR_EGL_NO_IMAGE;
GrGLTextureInfo externalTexture;
externalTexture.fID = 0;
if (!context1) {
cleanup(glCtx0, externalTexture.fID, glCtx1, context1, backendTexture1, image);
return;
}
if (!glCtx1->gl()->hasExtension("EGL_KHR_image") ||
!glCtx1->gl()->hasExtension("EGL_KHR_gl_texture_2D_image")) {
cleanup(glCtx0, externalTexture.fID, glCtx1, context1, backendTexture1, image);
return;
}
///////////////////////////////// CONTEXT 1 ///////////////////////////////////
// Use GL Context 1 to create a texture unknown to GrContext.
context1->flush();
GrGpu* gpu1 = context1->getGpu();
static const int kSize = 100;
backendTexture1 = reinterpret_cast<const GrGLTextureInfo*>(
gpu1->createTestingOnlyBackendTexture(nullptr, kSize, kSize, kRGBA_8888_GrPixelConfig));
if (!backendTexture1 || !backendTexture1->fID) {
ERRORF(reporter, "Error creating texture for EGL Image");
cleanup(glCtx0, externalTexture.fID, glCtx1, context1, backendTexture1, image);
return;
}
if (GR_GL_TEXTURE_2D != backendTexture1->fTarget) {
ERRORF(reporter, "Expected backend texture to be 2D");
cleanup(glCtx0, externalTexture.fID, glCtx1, context1, backendTexture1, image);
return;
}
// Wrap the texture in an EGLImage
image = glCtx1->texture2DToEGLImage(backendTexture1->fID);
if (GR_EGL_NO_IMAGE == image) {
ERRORF(reporter, "Error creating EGL Image from texture");
cleanup(glCtx0, externalTexture.fID, glCtx1, context1, backendTexture1, image);
return;
}
// Populate the texture using GL context 1. Important to use TexSubImage as TexImage orphans
// the EGL image. Also, this must be done after creating the EGLImage as the texture
// contents may not be preserved when the image is created.
SkAutoTMalloc<uint32_t> pixels(kSize * kSize);
for (int i = 0; i < kSize*kSize; ++i) {
pixels.get()[i] = 0xDDAABBCC;
}
GR_GL_CALL(glCtx1->gl(), ActiveTexture(GR_GL_TEXTURE0));
GR_GL_CALL(glCtx1->gl(), BindTexture(backendTexture1->fTarget, backendTexture1->fID));
GR_GL_CALL(glCtx1->gl(), TexSubImage2D(backendTexture1->fTarget, 0, 0, 0, kSize, kSize,
GR_GL_RGBA, GR_GL_UNSIGNED_BYTE, pixels.get()));
GR_GL_CALL(glCtx1->gl(), Finish());
// We've been making direct GL calls in GL context 1, let GrContext 1 know its internal
// state is invalid.
context1->resetContext();
///////////////////////////////// CONTEXT 0 ///////////////////////////////////
// Make a new texture ID in GL Context 0 from the EGL Image
glCtx0->makeCurrent();
externalTexture.fTarget = GR_GL_TEXTURE_EXTERNAL;
externalTexture.fID = glCtx0->eglImageToExternalTexture(image);
// Wrap this texture ID in a GrTexture
GrBackendTextureDesc externalDesc;
externalDesc.fConfig = kRGBA_8888_GrPixelConfig;
externalDesc.fWidth = kSize;
externalDesc.fHeight = kSize;
externalDesc.fTextureHandle = reinterpret_cast<GrBackendObject>(&externalTexture);
SkAutoTUnref<GrTexture> externalTextureObj(
context0->textureProvider()->wrapBackendTexture(externalDesc));
if (!externalTextureObj) {
ERRORF(reporter, "Error wrapping external texture in GrTexture.");
cleanup(glCtx0, externalTexture.fID, glCtx1, context1, backendTexture1, image);
return;
}
// Should not be able to wrap as a RT
externalDesc.fFlags = kRenderTarget_GrBackendTextureFlag;
SkAutoTUnref<GrTexture> externalTextureRTObj(
context0->textureProvider()->wrapBackendTexture(externalDesc));
if (externalTextureRTObj) {
ERRORF(reporter, "Should not be able to wrap an EXTERNAL texture as a RT.");
}
externalDesc.fFlags = kNone_GrBackendTextureFlag;
// Should not be able to wrap with a sample count
externalDesc.fSampleCnt = 4;
SkAutoTUnref<GrTexture> externalTextureMSAAObj(
context0->textureProvider()->wrapBackendTexture(externalDesc));
if (externalTextureMSAAObj) {
ERRORF(reporter, "Should not be able to wrap an EXTERNAL texture with MSAA.");
}
externalDesc.fSampleCnt = 0;
test_read_pixels(reporter, context0, externalTextureObj, pixels.get());
test_write_pixels(reporter, context0, externalTextureObj);
test_copy_surface(reporter, context0, externalTextureObj, pixels.get());
cleanup(glCtx0, externalTexture.fID, glCtx1, context1, backendTexture1, image);
}
void SkANGLEGLContext::destroyEGLImage(GrEGLImage image) const {
GR_GL_CALL(this->gl(), EGLDestroyImage(fDisplay, image));
}
void GLCpuPosInstancedArraysBench::setupInstanceVbo(const GrGLInterface* gl,
const SkMatrix* viewMatrices) {
// We draw all of the instances at a single place because we aren't allowed to have per vertex
// per instance attributes
SkPoint positions[kVerticesPerTri];
positions[0].set(-1.0f, -1.0f);
positions[1].set( 1.0f, -1.0f);
positions[2].set( 1.0f, 1.0f);
viewMatrices[0].mapPointsWithStride(positions, sizeof(SkPoint), kVerticesPerTri);
// setup colors so we can detect we are actually drawing instances(the last triangle will be
// a different color)
GrGLfloat colors[kVerticesPerTri * kNumTri];
for (uint32_t i = 0; i < kNumTri; i++) {
// set colors
uint32_t offset = i * kVerticesPerTri;
float color = i == kNumTri - 1 ? 1.0f : 0.0f;
colors[offset++] = color; colors[offset++] = 0.0f; colors[offset++] = 0.0f;
}
GrGLuint posVBO;
// setup position VBO
GR_GL_CALL(gl, GenBuffers(1, &posVBO));
GR_GL_CALL(gl, BindBuffer(GR_GL_ARRAY_BUFFER, posVBO));
GR_GL_CALL(gl, BufferData(GR_GL_ARRAY_BUFFER, sizeof(positions), positions, GR_GL_STATIC_DRAW));
GR_GL_CALL(gl, EnableVertexAttribArray(0));
GR_GL_CALL(gl, VertexAttribPointer(0, 2, GR_GL_FLOAT, GR_GL_FALSE, 2 * sizeof(GrGLfloat),
(GrGLvoid*)0));
// setup color VBO
GrGLuint instanceVBO;
GR_GL_CALL(gl, GenBuffers(1, &instanceVBO));
GR_GL_CALL(gl, BindBuffer(GR_GL_ARRAY_BUFFER, instanceVBO));
GR_GL_CALL(gl, BufferData(GR_GL_ARRAY_BUFFER, sizeof(colors), colors, GR_GL_STATIC_DRAW));
GR_GL_CALL(gl, EnableVertexAttribArray(1));
GR_GL_CALL(gl, VertexAttribPointer(1, 3, GR_GL_FLOAT, GR_GL_FALSE, 3 * sizeof(GrGLfloat),
(GrGLvoid*)0));
GR_GL_CALL(gl, VertexAttribDivisor(1, 1));
fBuffers.push_back(posVBO);
fBuffers.push_back(instanceVBO);
}
static void setup_framebuffer(const GrGLInterface* gl, int screenWidth, int screenHeight) {
//Setup framebuffer
GrGLuint texture;
GR_GL_CALL(gl, PixelStorei(GR_GL_UNPACK_ROW_LENGTH, 0));
GR_GL_CALL(gl, PixelStorei(GR_GL_PACK_ROW_LENGTH, 0));
GR_GL_CALL(gl, GenTextures(1, &texture));
GR_GL_CALL(gl, ActiveTexture(GR_GL_TEXTURE15));
GR_GL_CALL(gl, BindTexture(GR_GL_TEXTURE_2D, texture));
GR_GL_CALL(gl, TexParameteri(GR_GL_TEXTURE_2D, GR_GL_TEXTURE_MAG_FILTER, GR_GL_NEAREST));
GR_GL_CALL(gl, TexParameteri(GR_GL_TEXTURE_2D, GR_GL_TEXTURE_MIN_FILTER, GR_GL_NEAREST));
GR_GL_CALL(gl, TexParameteri(GR_GL_TEXTURE_2D, GR_GL_TEXTURE_WRAP_S, GR_GL_CLAMP_TO_EDGE));
GR_GL_CALL(gl, TexParameteri(GR_GL_TEXTURE_2D, GR_GL_TEXTURE_WRAP_T, GR_GL_CLAMP_TO_EDGE));
GR_GL_CALL(gl, TexImage2D(GR_GL_TEXTURE_2D,
0, //level
GR_GL_RGBA8, //internal format
screenWidth, // width
screenHeight, // height
0, //border
GR_GL_RGBA, //format
GR_GL_UNSIGNED_BYTE, // type
NULL));
// bind framebuffer
GrGLuint framebuffer;
GR_GL_CALL(gl, BindTexture(GR_GL_TEXTURE_2D, 0));
GR_GL_CALL(gl, GenFramebuffers(1, &framebuffer));
GR_GL_CALL(gl, BindFramebuffer(GR_GL_FRAMEBUFFER, framebuffer));
GR_GL_CALL(gl, FramebufferTexture2D(GR_GL_FRAMEBUFFER,
GR_GL_COLOR_ATTACHMENT0,
GR_GL_TEXTURE_2D,
texture, 0));
GR_GL_CALL(gl, CheckFramebufferStatus(GR_GL_FRAMEBUFFER));
GR_GL_CALL(gl, Viewport(0, 0, screenWidth, screenHeight));
}
DEF_GPUTEST_FOR_GL_RENDERING_CONTEXTS(RectangleTexture, reporter, ctxInfo) {
GrContext* context = ctxInfo.grContext();
GrProxyProvider* proxyProvider = context->contextPriv().proxyProvider();
sk_gpu_test::GLTestContext* glContext = ctxInfo.glContext();
static const int kWidth = 13;
static const int kHeight = 13;
GrColor pixels[kWidth * kHeight];
for (int y = 0; y < kHeight; ++y) {
for (int x = 0; x < kWidth; ++x) {
pixels[y * kWidth + x] = y * kWidth + x;
}
}
for (auto origin : { kBottomLeft_GrSurfaceOrigin, kTopLeft_GrSurfaceOrigin }) {
bool useBLOrigin = kBottomLeft_GrSurfaceOrigin == origin;
GrGLuint rectTexID = glContext->createTextureRectangle(kWidth, kHeight, GR_GL_RGBA,
GR_GL_RGBA, GR_GL_UNSIGNED_BYTE,
pixels);
if (!rectTexID) {
return;
}
// Let GrContext know that we messed with the GL context directly.
context->resetContext();
// Wrap the rectangle texture ID in a GrTexture
GrGLTextureInfo rectangleInfo;
rectangleInfo.fID = rectTexID;
rectangleInfo.fTarget = GR_GL_TEXTURE_RECTANGLE;
GrBackendTexture rectangleTex(kWidth, kHeight, kRGBA_8888_GrPixelConfig, rectangleInfo);
GrColor refPixels[kWidth * kHeight];
for (int y = 0; y < kHeight; ++y) {
for (int x = 0; x < kWidth; ++x) {
int y0 = useBLOrigin ? kHeight - y - 1 : y;
refPixels[y * kWidth + x] = pixels[y0 * kWidth + x];
}
}
sk_sp<GrTextureProxy> rectProxy = proxyProvider->wrapBackendTexture(rectangleTex, origin);
if (!rectProxy) {
ERRORF(reporter, "Error creating proxy for rectangle texture.");
GR_GL_CALL(glContext->gl(), DeleteTextures(1, &rectTexID));
continue;
}
SkASSERT(rectProxy->texPriv().doesNotSupportMipMaps());
SkASSERT(rectProxy->priv().peekTexture()->surfacePriv().doesNotSupportMipMaps());
SkASSERT(rectProxy->texPriv().isClampOnly());
SkASSERT(rectProxy->priv().peekTexture()->surfacePriv().isClampOnly());
test_basic_draw_as_src(reporter, context, rectProxy, refPixels);
// Test copy to both a texture and RT
test_copy_from_surface(reporter, context, rectProxy.get(), refPixels,
false, "RectangleTexture-copy-from");
sk_sp<GrSurfaceContext> rectContext = context->contextPriv().makeWrappedSurfaceContext(
std::move(rectProxy));
SkASSERT(rectContext);
test_read_pixels(reporter, rectContext.get(), refPixels, "RectangleTexture-read");
test_copy_to_surface(reporter, context->contextPriv().proxyProvider(),
rectContext.get(), "RectangleTexture-copy-to");
test_write_pixels(reporter, rectContext.get(), true, "RectangleTexture-write");
test_clear(reporter, rectContext.get());
GR_GL_CALL(glContext->gl(), DeleteTextures(1, &rectTexID));
}
}
