diff options
Diffstat (limited to 'glworker.cpp')
| -rw-r--r-- | glworker.cpp | 840 |
1 files changed, 0 insertions, 840 deletions
diff --git a/glworker.cpp b/glworker.cpp deleted file mode 100644 index ca726bf..0000000 --- a/glworker.cpp +++ /dev/null @@ -1,840 +0,0 @@ -/* - * Copyright (C) 2015 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#define ATRACE_TAG ATRACE_TAG_GRAPHICS -#define LOG_TAG "hwc-gl-worker" - -#include <algorithm> -#include <string> -#include <sstream> -#include <unordered_set> - -#include <sys/resource.h> - -#include <cutils/properties.h> - -#include <hardware/hardware.h> -#include <hardware/hwcomposer.h> - -#include <ui/GraphicBuffer.h> -#include <ui/PixelFormat.h> - -#include <utils/Trace.h> - -#include "drmdisplaycomposition.h" -#include "platform.h" - -#include "glworker.h" - -#define MAX_OVERLAPPING_LAYERS 64 - -namespace android { - -// clang-format off -// Column-major order: -// float mat[4] = { 1, 2, 3, 4 } === -// [ 1 3 ] -// [ 2 4 ] -float kTextureTransformMatrices[] = { - 1.0f, 0.0f, 0.0f, 1.0f, // identity matrix - 0.0f, 1.0f, 1.0f, 0.0f, // swap x and y -}; -// clang-format on - -static const char *GetGLError(void) { - switch (glGetError()) { - case GL_NO_ERROR: - return "GL_NO_ERROR"; - case GL_INVALID_ENUM: - return "GL_INVALID_ENUM"; - case GL_INVALID_VALUE: - return "GL_INVALID_VALUE"; - case GL_INVALID_OPERATION: - return "GL_INVALID_OPERATION"; - case GL_INVALID_FRAMEBUFFER_OPERATION: - return "GL_INVALID_FRAMEBUFFER_OPERATION"; - case GL_OUT_OF_MEMORY: - return "GL_OUT_OF_MEMORY"; - default: - return "Unknown error"; - } -} - -static const char *GetGLFramebufferError(void) { - switch (glCheckFramebufferStatus(GL_FRAMEBUFFER)) { - case GL_FRAMEBUFFER_COMPLETE: - return "GL_FRAMEBUFFER_COMPLETE"; - case GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT: - return "GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT"; - case GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT: - return "GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT"; - case GL_FRAMEBUFFER_UNSUPPORTED: - return "GL_FRAMEBUFFER_UNSUPPORTED"; - case GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS: - return "GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS"; - default: - return "Unknown error"; - } -} - -static const char *GetEGLError(void) { - switch (eglGetError()) { - case EGL_SUCCESS: - return "EGL_SUCCESS"; - case EGL_NOT_INITIALIZED: - return "EGL_NOT_INITIALIZED"; - case EGL_BAD_ACCESS: - return "EGL_BAD_ACCESS"; - case EGL_BAD_ALLOC: - return "EGL_BAD_ALLOC"; - case EGL_BAD_ATTRIBUTE: - return "EGL_BAD_ATTRIBUTE"; - case EGL_BAD_CONTEXT: - return "EGL_BAD_CONTEXT"; - case EGL_BAD_CONFIG: - return "EGL_BAD_CONFIG"; - case EGL_BAD_CURRENT_SURFACE: - return "EGL_BAD_CURRENT_SURFACE"; - case EGL_BAD_DISPLAY: - return "EGL_BAD_DISPLAY"; - case EGL_BAD_SURFACE: - return "EGL_BAD_SURFACE"; - case EGL_BAD_MATCH: - return "EGL_BAD_MATCH"; - case EGL_BAD_PARAMETER: - return "EGL_BAD_PARAMETER"; - case EGL_BAD_NATIVE_PIXMAP: - return "EGL_BAD_NATIVE_PIXMAP"; - case EGL_BAD_NATIVE_WINDOW: - return "EGL_BAD_NATIVE_WINDOW"; - case EGL_CONTEXT_LOST: - return "EGL_CONTEXT_LOST"; - default: - return "Unknown error"; - } -} - -static bool HasExtension(const char *extension, const char *extensions) { - const char *start, *where, *terminator; - start = extensions; - for (;;) { - where = (char *)strstr((const char *)start, extension); - if (!where) - break; - terminator = where + strlen(extension); - if (where == start || *(where - 1) == ' ') - if (*terminator == ' ' || *terminator == '\0') - return true; - start = terminator; - } - return false; -} - -int GLWorkerCompositor::BeginContext() { - private_.saved_egl_display = eglGetCurrentDisplay(); - private_.saved_egl_ctx = eglGetCurrentContext(); - - if (private_.saved_egl_display != egl_display_ || - private_.saved_egl_ctx != egl_ctx_) { - private_.saved_egl_read = eglGetCurrentSurface(EGL_READ); - private_.saved_egl_draw = eglGetCurrentSurface(EGL_DRAW); - } else { - return 0; - } - - if (!eglMakeCurrent(egl_display_, EGL_NO_SURFACE, EGL_NO_SURFACE, egl_ctx_)) { - ALOGE("BeginContext failed: %s", GetEGLError()); - return 1; - } - return 0; -} - -int GLWorkerCompositor::EndContext() { - if (private_.saved_egl_display != eglGetCurrentDisplay() || - private_.saved_egl_ctx != eglGetCurrentContext()) { - if (!eglMakeCurrent(private_.saved_egl_display, private_.saved_egl_read, - private_.saved_egl_draw, private_.saved_egl_ctx)) { - ALOGE("EndContext failed: %s", GetEGLError()); - return 1; - } - } - - return 0; -} - -static AutoGLShader CompileAndCheckShader(GLenum type, unsigned source_count, - const GLchar **sources, - std::ostringstream *shader_log) { - GLint status; - AutoGLShader shader(glCreateShader(type)); - if (shader.get() == 0) { - if (shader_log) - *shader_log << "Failed glCreateShader call"; - return 0; - } - - glShaderSource(shader.get(), source_count, sources, NULL); - glCompileShader(shader.get()); - glGetShaderiv(shader.get(), GL_COMPILE_STATUS, &status); - if (!status) { - if (shader_log) { - GLint log_length; - glGetShaderiv(shader.get(), GL_INFO_LOG_LENGTH, &log_length); - std::string info_log(log_length, ' '); - glGetShaderInfoLog(shader.get(), log_length, NULL, &info_log.front()); - *shader_log << "Failed to compile shader:\n" << info_log.c_str() - << "\nShader Source:\n"; - for (unsigned i = 0; i < source_count; i++) { - *shader_log << sources[i]; - } - *shader_log << "\n"; - } - return 0; - } - - return shader; -} - -static std::string GenerateVertexShader(int layer_count) { - std::ostringstream vertex_shader_stream; - vertex_shader_stream - << "#version 300 es\n" - << "#define LAYER_COUNT " << layer_count << "\n" - << "precision mediump int;\n" - << "uniform vec4 uViewport;\n" - << "uniform vec4 uLayerCrop[LAYER_COUNT];\n" - << "uniform mat2 uTexMatrix[LAYER_COUNT];\n" - << "in vec2 vPosition;\n" - << "in vec2 vTexCoords;\n" - << "out vec2 fTexCoords[LAYER_COUNT];\n" - << "void main() {\n" - << " for (int i = 0; i < LAYER_COUNT; i++) {\n" - << " vec2 tempCoords = vTexCoords * uTexMatrix[i];\n" - << " fTexCoords[i] =\n" - << " uLayerCrop[i].xy + tempCoords * uLayerCrop[i].zw;\n" - << " }\n" - << " vec2 scaledPosition = uViewport.xy + vPosition * uViewport.zw;\n" - << " gl_Position =\n" - << " vec4(scaledPosition * vec2(2.0) - vec2(1.0), 0.0, 1.0);\n" - << "}\n"; - return vertex_shader_stream.str(); -} - -static std::string GenerateFragmentShader(int layer_count) { - std::ostringstream fragment_shader_stream; - fragment_shader_stream << "#version 300 es\n" - << "#define LAYER_COUNT " << layer_count << "\n" - << "#extension GL_OES_EGL_image_external : require\n" - << "precision mediump float;\n"; - for (int i = 0; i < layer_count; ++i) { - fragment_shader_stream << "uniform samplerExternalOES uLayerTexture" << i - << ";\n"; - } - fragment_shader_stream << "uniform float uLayerAlpha[LAYER_COUNT];\n" - << "uniform float uLayerPremult[LAYER_COUNT];\n" - << "in vec2 fTexCoords[LAYER_COUNT];\n" - << "out vec4 oFragColor;\n" - << "void main() {\n" - << " vec3 color = vec3(0.0, 0.0, 0.0);\n" - << " float alphaCover = 1.0;\n" - << " vec4 texSample;\n" - << " vec3 multRgb;\n"; - for (int i = 0; i < layer_count; ++i) { - if (i > 0) - fragment_shader_stream << " if (alphaCover > 0.5/255.0) {\n"; - // clang-format off - fragment_shader_stream - << " texSample = texture2D(uLayerTexture" << i << ",\n" - << " fTexCoords[" << i << "]);\n" - << " multRgb = texSample.rgb *\n" - << " max(texSample.a, uLayerPremult[" << i << "]);\n" - << " color += multRgb * uLayerAlpha[" << i << "] * alphaCover;\n" - << " alphaCover *= 1.0 - texSample.a * uLayerAlpha[" << i << "];\n"; - // clang-format on - } - for (int i = 0; i < layer_count - 1; ++i) - fragment_shader_stream << " }\n"; - fragment_shader_stream << " oFragColor = vec4(color, 1.0 - alphaCover);\n" - << "}\n"; - return fragment_shader_stream.str(); -} - -static AutoGLProgram GenerateProgram(unsigned num_textures, - std::ostringstream *shader_log) { - std::string vertex_shader_string = GenerateVertexShader(num_textures); - const GLchar *vertex_shader_source = vertex_shader_string.c_str(); - AutoGLShader vertex_shader = CompileAndCheckShader( - GL_VERTEX_SHADER, 1, &vertex_shader_source, shader_log); - if (!vertex_shader.get()) - return 0; - - std::string fragment_shader_string = GenerateFragmentShader(num_textures); - const GLchar *fragment_shader_source = fragment_shader_string.c_str(); - AutoGLShader fragment_shader = CompileAndCheckShader( - GL_FRAGMENT_SHADER, 1, &fragment_shader_source, shader_log); - if (!fragment_shader.get()) - return 0; - - AutoGLProgram program(glCreateProgram()); - if (!program.get()) { - if (shader_log) - *shader_log << "Failed to create program: " << GetGLError() << "\n"; - return 0; - } - - glAttachShader(program.get(), vertex_shader.get()); - glAttachShader(program.get(), fragment_shader.get()); - glBindAttribLocation(program.get(), 0, "vPosition"); - glBindAttribLocation(program.get(), 1, "vTexCoords"); - glLinkProgram(program.get()); - glDetachShader(program.get(), vertex_shader.get()); - glDetachShader(program.get(), fragment_shader.get()); - - GLint status; - glGetProgramiv(program.get(), GL_LINK_STATUS, &status); - if (!status) { - if (shader_log) { - GLint log_length; - glGetProgramiv(program.get(), GL_INFO_LOG_LENGTH, &log_length); - std::string program_log(log_length, ' '); - glGetProgramInfoLog(program.get(), log_length, NULL, - &program_log.front()); - *shader_log << "Failed to link program:\n" << program_log.c_str() << "\n"; - } - return 0; - } - - return program; -} - -struct RenderingCommand { - struct TextureSource { - unsigned texture_index; - float crop_bounds[4]; - float alpha; - float premult; - float texture_matrix[4]; - }; - - float bounds[4]; - unsigned texture_count = 0; - TextureSource textures[MAX_OVERLAPPING_LAYERS]; -}; - -static void ConstructCommand(const DrmHwcLayer *layers, - const DrmCompositionRegion ®ion, - RenderingCommand &cmd) { - std::copy_n(region.frame.bounds, 4, cmd.bounds); - - for (size_t texture_index : region.source_layers) { - const DrmHwcLayer &layer = layers[texture_index]; - - DrmHwcRect<float> display_rect(layer.display_frame); - float display_size[2] = {display_rect.bounds[2] - display_rect.bounds[0], - display_rect.bounds[3] - display_rect.bounds[1]}; - - float tex_width = layer.buffer->width; - float tex_height = layer.buffer->height; - DrmHwcRect<float> crop_rect(layer.source_crop.left / tex_width, - layer.source_crop.top / tex_height, - layer.source_crop.right / tex_width, - layer.source_crop.bottom / tex_height); - - float crop_size[2] = {crop_rect.bounds[2] - crop_rect.bounds[0], - crop_rect.bounds[3] - crop_rect.bounds[1]}; - - RenderingCommand::TextureSource &src = cmd.textures[cmd.texture_count]; - cmd.texture_count++; - src.texture_index = texture_index; - - bool swap_xy = false; - bool flip_xy[2] = { false, false }; - - if (layer.transform == DrmHwcTransform::kRotate180) { - swap_xy = false; - flip_xy[0] = true; - flip_xy[1] = true; - } else if (layer.transform == DrmHwcTransform::kRotate270) { - swap_xy = true; - flip_xy[0] = true; - flip_xy[1] = false; - } else if (layer.transform & DrmHwcTransform::kRotate90) { - swap_xy = true; - if (layer.transform & DrmHwcTransform::kFlipH) { - flip_xy[0] = true; - flip_xy[1] = true; - } else if (layer.transform & DrmHwcTransform::kFlipV) { - flip_xy[0] = false; - flip_xy[1] = false; - } else { - flip_xy[0] = false; - flip_xy[1] = true; - } - } else { - if (layer.transform & DrmHwcTransform::kFlipH) - flip_xy[0] = true; - if (layer.transform & DrmHwcTransform::kFlipV) - flip_xy[1] = true; - } - - if (swap_xy) - std::copy_n(&kTextureTransformMatrices[4], 4, src.texture_matrix); - else - std::copy_n(&kTextureTransformMatrices[0], 4, src.texture_matrix); - - for (int j = 0; j < 4; j++) { - int b = j ^ (swap_xy ? 1 : 0); - float bound_percent = - (cmd.bounds[b] - display_rect.bounds[b % 2]) / display_size[b % 2]; - if (flip_xy[j % 2]) { - src.crop_bounds[j] = - crop_rect.bounds[j % 2 + 2] - bound_percent * crop_size[j % 2]; - } else { - src.crop_bounds[j] = - crop_rect.bounds[j % 2] + bound_percent * crop_size[j % 2]; - } - } - - if (layer.blending == DrmHwcBlending::kNone) { - src.alpha = src.premult = 1.0f; - // This layer is opaque. There is no point in using layers below this one. - break; - } - - src.alpha = layer.alpha / 255.0f; - src.premult = (layer.blending == DrmHwcBlending::kPreMult) ? 1.0f : 0.0f; - } -} - -static int EGLFenceWait(EGLDisplay egl_display, int acquireFenceFd) { - int ret = 0; - - EGLint attribs[] = {EGL_SYNC_NATIVE_FENCE_FD_ANDROID, acquireFenceFd, - EGL_NONE}; - EGLSyncKHR egl_sync = - eglCreateSyncKHR(egl_display, EGL_SYNC_NATIVE_FENCE_ANDROID, attribs); - if (egl_sync == EGL_NO_SYNC_KHR) { - ALOGE("Failed to make EGLSyncKHR from acquireFenceFd: %s", GetEGLError()); - close(acquireFenceFd); - return 1; - } - - EGLint success = eglWaitSyncKHR(egl_display, egl_sync, 0); - if (success == EGL_FALSE) { - ALOGE("Failed to wait for acquire: %s", GetEGLError()); - ret = 1; - } - eglDestroySyncKHR(egl_display, egl_sync); - - return ret; -} - -static int CreateTextureFromHandle(EGLDisplay egl_display, - buffer_handle_t handle, - Importer *importer, - AutoEGLImageAndGLTexture *out) { - EGLImageKHR image = importer->ImportImage(egl_display, handle); - - if (image == EGL_NO_IMAGE_KHR) { - ALOGE("Failed to make image %s %p", GetEGLError(), handle); - return -EINVAL; - } - - GLuint texture; - glGenTextures(1, &texture); - glBindTexture(GL_TEXTURE_EXTERNAL_OES, texture); - glEGLImageTargetTexture2DOES(GL_TEXTURE_EXTERNAL_OES, (GLeglImageOES)image); - glTexParameteri(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_MAG_FILTER, GL_LINEAR); - glTexParameteri(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_MIN_FILTER, GL_LINEAR); - glTexParameteri(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_WRAP_S, GL_REPEAT); - glTexParameteri(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_WRAP_T, GL_REPEAT); - glBindTexture(GL_TEXTURE_EXTERNAL_OES, 0); - - out->image.reset(egl_display, image); - out->texture.reset(texture); - - return 0; -} - -GLWorkerCompositor::GLWorkerCompositor() - : egl_display_(EGL_NO_DISPLAY), egl_ctx_(EGL_NO_CONTEXT) { -} - -int GLWorkerCompositor::Init() { - int ret = 0; - const char *egl_extensions; - const char *gl_extensions; - EGLint num_configs; - EGLConfig egl_config; - - // clang-format off - const GLfloat verts[] = { - 0.0f, 0.0f, 0.0f, 0.0f, - 0.0f, 2.0f, 0.0f, 2.0f, - 2.0f, 0.0f, 2.0f, 0.0f - }; - // clang-format on - - const EGLint config_attribs[] = {EGL_RENDERABLE_TYPE, - EGL_OPENGL_ES2_BIT, - EGL_RED_SIZE, - 8, - EGL_GREEN_SIZE, - 8, - EGL_BLUE_SIZE, - 8, - EGL_NONE}; - - const EGLint context_attribs[] = {EGL_CONTEXT_CLIENT_VERSION, 3, EGL_NONE}; - - egl_display_ = eglGetDisplay(EGL_DEFAULT_DISPLAY); - if (egl_display_ == EGL_NO_DISPLAY) { - ALOGE("Failed to get egl display"); - return 1; - } - - if (!eglInitialize(egl_display_, NULL, NULL)) { - ALOGE("Failed to initialize egl: %s", GetEGLError()); - return 1; - } - - egl_extensions = eglQueryString(egl_display_, EGL_EXTENSIONS); - - // These extensions are all technically required but not always reported due - // to meta EGL filtering them out. - if (!HasExtension("EGL_KHR_image_base", egl_extensions)) - ALOGW("EGL_KHR_image_base extension not supported"); - - if (!HasExtension("EGL_ANDROID_image_native_buffer", egl_extensions)) - ALOGW("EGL_ANDROID_image_native_buffer extension not supported"); - - if (!HasExtension("EGL_ANDROID_native_fence_sync", egl_extensions)) - ALOGW("EGL_ANDROID_native_fence_sync extension not supported"); - - if (!eglChooseConfig(egl_display_, config_attribs, &egl_config, 1, - &num_configs)) { - ALOGE("eglChooseConfig() failed with error: %s", GetEGLError()); - return 1; - } - - egl_ctx_ = - eglCreateContext(egl_display_, egl_config, - EGL_NO_CONTEXT /* No shared context */, context_attribs); - - if (egl_ctx_ == EGL_NO_CONTEXT) { - ALOGE("Failed to create OpenGL ES Context: %s", GetEGLError()); - return 1; - } - - ret = BeginContext(); - if (ret) - return ret; - - gl_extensions = (const char *)glGetString(GL_EXTENSIONS); - - if (!HasExtension("GL_OES_EGL_image", gl_extensions)) - ALOGW("GL_OES_EGL_image extension not supported"); - - if (!HasExtension("GL_OES_EGL_image_external", gl_extensions)) - ALOGW("GL_OES_EGL_image_external extension not supported"); - - GLuint vertex_buffer; - glGenBuffers(1, &vertex_buffer); - glBindBuffer(GL_ARRAY_BUFFER, vertex_buffer); - glBufferData(GL_ARRAY_BUFFER, sizeof(verts), verts, GL_STATIC_DRAW); - glBindBuffer(GL_ARRAY_BUFFER, 0); - vertex_buffer_.reset(vertex_buffer); - - std::ostringstream shader_log; - blend_programs_.emplace_back(GenerateProgram(1, &shader_log)); - - EndContext(); - - if (blend_programs_.back().get() == 0) { - ALOGE("%s", shader_log.str().c_str()); - return 1; - } - - return 0; -} - -GLWorkerCompositor::~GLWorkerCompositor() { - if (egl_display_ != EGL_NO_DISPLAY && egl_ctx_ != EGL_NO_CONTEXT) - if (eglDestroyContext(egl_display_, egl_ctx_) == EGL_FALSE) - ALOGE("Failed to destroy OpenGL ES Context: %s", GetEGLError()); -} - -int GLWorkerCompositor::Composite(DrmHwcLayer *layers, - DrmCompositionRegion *regions, - size_t num_regions, - const sp<GraphicBuffer> &framebuffer, - Importer *importer) { - ATRACE_CALL(); - int ret = 0; - std::vector<AutoEGLImageAndGLTexture> layer_textures; - std::vector<RenderingCommand> commands; - - if (num_regions == 0) { - return -EALREADY; - } - - ret = BeginContext(); - if (ret) - return -1; - - GLint frame_width = framebuffer->getWidth(); - GLint frame_height = framebuffer->getHeight(); - CachedFramebuffer *cached_framebuffer = - PrepareAndCacheFramebuffer(framebuffer); - if (cached_framebuffer == NULL) { - ALOGE("Composite failed because of failed framebuffer"); - EndContext(); - return -EINVAL; - } - - std::unordered_set<size_t> layers_used_indices; - for (size_t region_index = 0; region_index < num_regions; region_index++) { - DrmCompositionRegion ®ion = regions[region_index]; - layers_used_indices.insert(region.source_layers.begin(), - region.source_layers.end()); - commands.emplace_back(); - ConstructCommand(layers, region, commands.back()); - } - - for (size_t layer_index = 0; layer_index < MAX_OVERLAPPING_LAYERS; - layer_index++) { - DrmHwcLayer *layer = &layers[layer_index]; - - layer_textures.emplace_back(); - - if (layers_used_indices.count(layer_index) == 0) - continue; - - ret = CreateTextureFromHandle(egl_display_, layer->get_usable_handle(), - importer, &layer_textures.back()); - - if (!ret) { - ret = EGLFenceWait(egl_display_, layer->acquire_fence.Release()); - } - if (ret) { - layer_textures.pop_back(); - ret = -EINVAL; - } - } - - if (ret) { - EndContext(); - return ret; - } - - glViewport(0, 0, frame_width, frame_height); - - glClearColor(0.0f, 0.0f, 0.0f, 0.0f); - glClear(GL_COLOR_BUFFER_BIT); - - glBindBuffer(GL_ARRAY_BUFFER, vertex_buffer_.get()); - glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, sizeof(float) * 4, NULL); - glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, sizeof(float) * 4, - (void *)(sizeof(float) * 2)); - glEnableVertexAttribArray(0); - glEnableVertexAttribArray(1); - glEnable(GL_SCISSOR_TEST); - - for (const RenderingCommand &cmd : commands) { - if (cmd.texture_count == 0) - continue; - - // TODO(zachr): handle the case of too many overlapping textures for one - // area by falling back to rendering as many layers as possible using - // multiple blending passes. - GLint program = PrepareAndCacheProgram(cmd.texture_count); - if (program == 0) { - ALOGE("Too many layers to render in one area"); - continue; - } - - glUseProgram(program); - GLint gl_viewport_loc = glGetUniformLocation(program, "uViewport"); - GLint gl_crop_loc = glGetUniformLocation(program, "uLayerCrop"); - GLint gl_alpha_loc = glGetUniformLocation(program, "uLayerAlpha"); - GLint gl_premult_loc = glGetUniformLocation(program, "uLayerPremult"); - GLint gl_tex_matrix_loc = glGetUniformLocation(program, "uTexMatrix"); - glUniform4f(gl_viewport_loc, cmd.bounds[0] / (float)frame_width, - cmd.bounds[1] / (float)frame_height, - (cmd.bounds[2] - cmd.bounds[0]) / (float)frame_width, - (cmd.bounds[3] - cmd.bounds[1]) / (float)frame_height); - - for (unsigned src_index = 0; src_index < cmd.texture_count; src_index++) { - std::ostringstream texture_name_formatter; - texture_name_formatter << "uLayerTexture" << src_index; - GLint gl_tex_loc = - glGetUniformLocation(program, texture_name_formatter.str().c_str()); - - const RenderingCommand::TextureSource &src = cmd.textures[src_index]; - glUniform1f(gl_alpha_loc + src_index, src.alpha); - glUniform1f(gl_premult_loc + src_index, src.premult); - glUniform4f(gl_crop_loc + src_index, src.crop_bounds[0], - src.crop_bounds[1], src.crop_bounds[2] - src.crop_bounds[0], - src.crop_bounds[3] - src.crop_bounds[1]); - glUniform1i(gl_tex_loc, src_index); - glUniformMatrix2fv(gl_tex_matrix_loc + src_index, 1, GL_FALSE, - src.texture_matrix); - glActiveTexture(GL_TEXTURE0 + src_index); - glBindTexture(GL_TEXTURE_EXTERNAL_OES, - layer_textures[src.texture_index].texture.get()); - } - - glScissor(cmd.bounds[0], cmd.bounds[1], cmd.bounds[2] - cmd.bounds[0], - cmd.bounds[3] - cmd.bounds[1]); - glDrawArrays(GL_TRIANGLES, 0, 3); - - for (unsigned src_index = 0; src_index < cmd.texture_count; src_index++) { - glActiveTexture(GL_TEXTURE0 + src_index); - glBindTexture(GL_TEXTURE_EXTERNAL_OES, 0); - } - } - - glDisable(GL_SCISSOR_TEST); - glActiveTexture(GL_TEXTURE0); - glDisableVertexAttribArray(0); - glDisableVertexAttribArray(1); - glBindBuffer(GL_ARRAY_BUFFER, 0); - glUseProgram(0); - - glBindFramebuffer(GL_FRAMEBUFFER, 0); - - EndContext(); - return ret; -} - -void GLWorkerCompositor::Finish() { - ATRACE_CALL(); - glFinish(); - - char use_framebuffer_cache_opt[PROPERTY_VALUE_MAX]; - property_get("hwc.drm.use_framebuffer_cache", use_framebuffer_cache_opt, "1"); - bool use_framebuffer_cache = atoi(use_framebuffer_cache_opt); - - if (use_framebuffer_cache) { - for (auto &fb : cached_framebuffers_) - fb.strong_framebuffer.clear(); - } else { - cached_framebuffers_.clear(); - } -} - -GLWorkerCompositor::CachedFramebuffer::CachedFramebuffer( - const sp<GraphicBuffer> &gb, AutoEGLDisplayImage &&image, - AutoGLTexture &&tex, AutoGLFramebuffer &&fb) - : strong_framebuffer(gb), - weak_framebuffer(gb), - egl_fb_image(std::move(image)), - gl_fb_tex(std::move(tex)), - gl_fb(std::move(fb)) { -} - -bool GLWorkerCompositor::CachedFramebuffer::Promote() { - if (strong_framebuffer.get() != NULL) - return true; - strong_framebuffer = weak_framebuffer.promote(); - return strong_framebuffer.get() != NULL; -} - -GLWorkerCompositor::CachedFramebuffer * -GLWorkerCompositor::FindCachedFramebuffer( - const sp<GraphicBuffer> &framebuffer) { - for (auto &fb : cached_framebuffers_) - if (fb.weak_framebuffer == framebuffer) - return &fb; - return NULL; -} - -GLWorkerCompositor::CachedFramebuffer * -GLWorkerCompositor::PrepareAndCacheFramebuffer( - const sp<GraphicBuffer> &framebuffer) { - CachedFramebuffer *cached_framebuffer = FindCachedFramebuffer(framebuffer); - if (cached_framebuffer != NULL) { - if (cached_framebuffer->Promote()) { - glBindFramebuffer(GL_FRAMEBUFFER, cached_framebuffer->gl_fb.get()); - return cached_framebuffer; - } - - for (auto it = cached_framebuffers_.begin(); - it != cached_framebuffers_.end(); ++it) { - if (it->weak_framebuffer == framebuffer) { - cached_framebuffers_.erase(it); - break; - } - } - } - - AutoEGLDisplayImage egl_fb_image( - egl_display_, - eglCreateImageKHR(egl_display_, EGL_NO_CONTEXT, EGL_NATIVE_BUFFER_ANDROID, - (EGLClientBuffer)framebuffer->getNativeBuffer(), - NULL /* no attribs */)); - - if (egl_fb_image.image() == EGL_NO_IMAGE_KHR) { - ALOGE("Failed to make image from target buffer: %s", GetEGLError()); - return NULL; - } - - GLuint gl_fb_tex; - glGenTextures(1, &gl_fb_tex); - AutoGLTexture gl_fb_tex_auto(gl_fb_tex); - glBindTexture(GL_TEXTURE_2D, gl_fb_tex); - glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, - (GLeglImageOES)egl_fb_image.image()); - glBindTexture(GL_TEXTURE_2D, 0); - - GLuint gl_fb; - glGenFramebuffers(1, &gl_fb); - AutoGLFramebuffer gl_fb_auto(gl_fb); - glBindFramebuffer(GL_FRAMEBUFFER, gl_fb); - glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, - gl_fb_tex, 0); - - if (glCheckFramebufferStatus(GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE) { - ALOGE("Failed framebuffer check for created target buffer: %s", - GetGLFramebufferError()); - return NULL; - } - - cached_framebuffers_.emplace_back(framebuffer, std::move(egl_fb_image), - std::move(gl_fb_tex_auto), - std::move(gl_fb_auto)); - return &cached_framebuffers_.back(); -} - -GLint GLWorkerCompositor::PrepareAndCacheProgram(unsigned texture_count) { - if (blend_programs_.size() >= texture_count) { - GLint program = blend_programs_[texture_count - 1].get(); - if (program != 0) - return program; - } - - AutoGLProgram program = GenerateProgram(texture_count, NULL); - if (program.get() != 0) { - if (blend_programs_.size() < texture_count) - blend_programs_.resize(texture_count); - blend_programs_[texture_count - 1] = std::move(program); - return blend_programs_[texture_count - 1].get(); - } - - return 0; -} - -} // namespace android |