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Unified Diff: webrtc/modules/video_render/ios/open_gles20.mm

Issue 1912143002: Delete video_render module. (Closed) Base URL: https://chromium.googlesource.com/external/webrtc.git@master
Patch Set: Move -framework flags from legacy_objc_api_tests.gyp to legacy_objc_api.gyp. Created 4 years, 8 months ago
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Index: webrtc/modules/video_render/ios/open_gles20.mm
diff --git a/webrtc/modules/video_render/ios/open_gles20.mm b/webrtc/modules/video_render/ios/open_gles20.mm
deleted file mode 100644
index d1735280f26e2a1ab4a8aa7641c3debdef127654..0000000000000000000000000000000000000000
--- a/webrtc/modules/video_render/ios/open_gles20.mm
+++ /dev/null
@@ -1,330 +0,0 @@
-/*
- * Copyright (c) 2012 The WebRTC 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 in the root of the source
- * tree. An additional intellectual property rights grant can be found
- * in the file PATENTS. All contributing project authors may
- * be found in the AUTHORS file in the root of the source tree.
- */
-
-#if !defined(__has_feature) || !__has_feature(objc_arc)
-#error "This file requires ARC support."
-#endif
-
-// This files is mostly copied from
-// webrtc/modules/video_render/android/video_render_opengles20.h
-
-// TODO(sjlee): unify this copy with the android one.
-#include "webrtc/modules/video_render/ios/open_gles20.h"
-#include "webrtc/system_wrappers/include/trace.h"
-
-using namespace webrtc;
-
-const char OpenGles20::indices_[] = {0, 3, 2, 0, 2, 1};
-
-const char OpenGles20::vertext_shader_[] = {
- "attribute vec4 aPosition;\n"
- "attribute vec2 aTextureCoord;\n"
- "varying vec2 vTextureCoord;\n"
- "void main() {\n"
- " gl_Position = aPosition;\n"
- " vTextureCoord = aTextureCoord;\n"
- "}\n"};
-
-// The fragment shader.
-// Do YUV to RGB565 conversion.
-const char OpenGles20::fragment_shader_[] = {
- "precision mediump float;\n"
- "uniform sampler2D Ytex;\n"
- "uniform sampler2D Utex,Vtex;\n"
- "varying vec2 vTextureCoord;\n"
- "void main(void) {\n"
- " float nx,ny,r,g,b,y,u,v;\n"
- " mediump vec4 txl,ux,vx;"
- " nx=vTextureCoord[0];\n"
- " ny=vTextureCoord[1];\n"
- " y=texture2D(Ytex,vec2(nx,ny)).r;\n"
- " u=texture2D(Utex,vec2(nx,ny)).r;\n"
- " v=texture2D(Vtex,vec2(nx,ny)).r;\n"
- " y=1.1643*(y-0.0625);\n"
- " u=u-0.5;\n"
- " v=v-0.5;\n"
- " r=y+1.5958*v;\n"
- " g=y-0.39173*u-0.81290*v;\n"
- " b=y+2.017*u;\n"
- " gl_FragColor=vec4(r,g,b,1.0);\n"
- "}\n"};
-
-OpenGles20::OpenGles20() : texture_width_(-1), texture_height_(-1) {
- texture_ids_[0] = 0;
- texture_ids_[1] = 0;
- texture_ids_[2] = 0;
-
- program_ = 0;
-
- const GLfloat vertices[20] = {
- // X, Y, Z, U, V
- -1, -1, 0, 0, 1, // Bottom Left
- 1, -1, 0, 1, 1, // Bottom Right
- 1, 1, 0, 1, 0, // Top Right
- -1, 1, 0, 0, 0}; // Top Left
-
- memcpy(vertices_, vertices, sizeof(vertices_));
-}
-
-OpenGles20::~OpenGles20() {
- if (program_) {
- glDeleteTextures(3, texture_ids_);
- glDeleteProgram(program_);
- }
-}
-
-bool OpenGles20::Setup(int32_t width, int32_t height) {
- program_ = CreateProgram(vertext_shader_, fragment_shader_);
- if (!program_) {
- return false;
- }
-
- int position_handle = glGetAttribLocation(program_, "aPosition");
- int texture_handle = glGetAttribLocation(program_, "aTextureCoord");
-
- // set the vertices array in the shader
- // vertices_ contains 4 vertices with 5 coordinates.
- // 3 for (xyz) for the vertices and 2 for the texture
- glVertexAttribPointer(
- position_handle, 3, GL_FLOAT, false, 5 * sizeof(GLfloat), vertices_);
-
- glEnableVertexAttribArray(position_handle);
-
- // set the texture coordinate array in the shader
- // vertices_ contains 4 vertices with 5 coordinates.
- // 3 for (xyz) for the vertices and 2 for the texture
- glVertexAttribPointer(
- texture_handle, 2, GL_FLOAT, false, 5 * sizeof(GLfloat), &vertices_[3]);
- glEnableVertexAttribArray(texture_handle);
-
- glUseProgram(program_);
- int i = glGetUniformLocation(program_, "Ytex");
- glUniform1i(i, 0); /* Bind Ytex to texture unit 0 */
-
- i = glGetUniformLocation(program_, "Utex");
- glUniform1i(i, 1); /* Bind Utex to texture unit 1 */
-
- i = glGetUniformLocation(program_, "Vtex");
- glUniform1i(i, 2); /* Bind Vtex to texture unit 2 */
-
- glViewport(0, 0, width, height);
- return true;
-}
-
-bool OpenGles20::SetCoordinates(const float z_order,
- const float left,
- const float top,
- const float right,
- const float bottom) {
- if (top > 1 || top < 0 || right > 1 || right < 0 || bottom > 1 ||
- bottom < 0 || left > 1 || left < 0) {
- return false;
- }
-
- // Bottom Left
- vertices_[0] = (left * 2) - 1;
- vertices_[1] = -1 * (2 * bottom) + 1;
- vertices_[2] = z_order;
-
- // Bottom Right
- vertices_[5] = (right * 2) - 1;
- vertices_[6] = -1 * (2 * bottom) + 1;
- vertices_[7] = z_order;
-
- // Top Right
- vertices_[10] = (right * 2) - 1;
- vertices_[11] = -1 * (2 * top) + 1;
- vertices_[12] = z_order;
-
- // Top Left
- vertices_[15] = (left * 2) - 1;
- vertices_[16] = -1 * (2 * top) + 1;
- vertices_[17] = z_order;
-
- return true;
-}
-
-bool OpenGles20::Render(const VideoFrame& frame) {
- if (texture_width_ != (GLsizei)frame.width() ||
- texture_height_ != (GLsizei)frame.height()) {
- SetupTextures(frame);
- }
- UpdateTextures(frame);
-
- glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_BYTE, indices_);
-
- return true;
-}
-
-GLuint OpenGles20::LoadShader(GLenum shader_type, const char* shader_source) {
- GLuint shader = glCreateShader(shader_type);
- if (shader) {
- glShaderSource(shader, 1, &shader_source, NULL);
- glCompileShader(shader);
-
- GLint compiled = 0;
- glGetShaderiv(shader, GL_COMPILE_STATUS, &compiled);
- if (!compiled) {
- GLint info_len = 0;
- glGetShaderiv(shader, GL_INFO_LOG_LENGTH, &info_len);
- if (info_len) {
- char* buf = (char*)malloc(info_len);
- glGetShaderInfoLog(shader, info_len, NULL, buf);
- WEBRTC_TRACE(kTraceError,
- kTraceVideoRenderer,
- 0,
- "%s: Could not compile shader %d: %s",
- __FUNCTION__,
- shader_type,
- buf);
- free(buf);
- }
- glDeleteShader(shader);
- shader = 0;
- }
- }
- return shader;
-}
-
-GLuint OpenGles20::CreateProgram(const char* vertex_source,
- const char* fragment_source) {
- GLuint vertex_shader = LoadShader(GL_VERTEX_SHADER, vertex_source);
- if (!vertex_shader) {
- return -1;
- }
-
- GLuint fragment_shader = LoadShader(GL_FRAGMENT_SHADER, fragment_source);
- if (!fragment_shader) {
- return -1;
- }
-
- GLuint program = glCreateProgram();
- if (program) {
- glAttachShader(program, vertex_shader);
- glAttachShader(program, fragment_shader);
- glLinkProgram(program);
- GLint link_status = GL_FALSE;
- glGetProgramiv(program, GL_LINK_STATUS, &link_status);
- if (link_status != GL_TRUE) {
- GLint info_len = 0;
- glGetProgramiv(program, GL_INFO_LOG_LENGTH, &info_len);
- if (info_len) {
- char* buf = (char*)malloc(info_len);
- glGetProgramInfoLog(program, info_len, NULL, buf);
- WEBRTC_TRACE(kTraceError,
- kTraceVideoRenderer,
- 0,
- "%s: Could not link program: %s",
- __FUNCTION__,
- buf);
- free(buf);
- }
- glDeleteProgram(program);
- program = 0;
- }
- }
-
- if (vertex_shader) {
- glDeleteShader(vertex_shader);
- }
-
- if (fragment_shader) {
- glDeleteShader(fragment_shader);
- }
-
- return program;
-}
-
-static void InitializeTexture(int name, int id, int width, int height) {
- glActiveTexture(name);
- glBindTexture(GL_TEXTURE_2D, id);
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
- glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
- glTexImage2D(GL_TEXTURE_2D,
- 0,
- GL_LUMINANCE,
- width,
- height,
- 0,
- GL_LUMINANCE,
- GL_UNSIGNED_BYTE,
- NULL);
-}
-
-void OpenGles20::SetupTextures(const VideoFrame& frame) {
- const GLsizei width = frame.width();
- const GLsizei height = frame.height();
-
- if (!texture_ids_[0]) {
- glGenTextures(3, texture_ids_); // Generate the Y, U and V texture
- }
-
- InitializeTexture(GL_TEXTURE0, texture_ids_[0], width, height);
- InitializeTexture(GL_TEXTURE1, texture_ids_[1], width / 2, height / 2);
- InitializeTexture(GL_TEXTURE2, texture_ids_[2], width / 2, height / 2);
-
- texture_width_ = width;
- texture_height_ = height;
-}
-
-// Uploads a plane of pixel data, accounting for stride != width*bpp.
-static void GlTexSubImage2D(GLsizei width,
- GLsizei height,
- int stride,
- const uint8_t* plane) {
- if (stride == width) {
- // Yay! We can upload the entire plane in a single GL call.
- glTexSubImage2D(GL_TEXTURE_2D,
- 0,
- 0,
- 0,
- width,
- height,
- GL_LUMINANCE,
- GL_UNSIGNED_BYTE,
- static_cast<const GLvoid*>(plane));
- } else {
- // Boo! Since GLES2 doesn't have GL_UNPACK_ROW_LENGTH and iOS doesn't
- // have GL_EXT_unpack_subimage we have to upload a row at a time. Ick.
- for (int row = 0; row < height; ++row) {
- glTexSubImage2D(GL_TEXTURE_2D,
- 0,
- 0,
- row,
- width,
- 1,
- GL_LUMINANCE,
- GL_UNSIGNED_BYTE,
- static_cast<const GLvoid*>(plane + (row * stride)));
- }
- }
-}
-
-void OpenGles20::UpdateTextures(const VideoFrame& frame) {
- const GLsizei width = frame.width();
- const GLsizei height = frame.height();
-
- glActiveTexture(GL_TEXTURE0);
- glBindTexture(GL_TEXTURE_2D, texture_ids_[0]);
- GlTexSubImage2D(width, height, frame.stride(kYPlane), frame.buffer(kYPlane));
-
- glActiveTexture(GL_TEXTURE1);
- glBindTexture(GL_TEXTURE_2D, texture_ids_[1]);
- GlTexSubImage2D(
- width / 2, height / 2, frame.stride(kUPlane), frame.buffer(kUPlane));
-
- glActiveTexture(GL_TEXTURE2);
- glBindTexture(GL_TEXTURE_2D, texture_ids_[2]);
- GlTexSubImage2D(
- width / 2, height / 2, frame.stride(kVPlane), frame.buffer(kVPlane));
-}
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