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author | Steve Block <steveblock@google.com> | 2011-05-09 16:25:46 +0100 |
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committer | Steve Block <steveblock@google.com> | 2011-05-12 14:28:33 +0100 |
commit | 31dbc523d9ee6fd7d7e46c540b5f675eeb559ed7 (patch) | |
tree | 3e73099a4bf4c6849c6f448aa3aba9fe408998f8 /Source/WebCore/platform/graphics/android/GLUtils.cpp | |
parent | cad810f21b803229eb11403f9209855525a25d57 (diff) | |
download | external_webkit-31dbc523d9ee6fd7d7e46c540b5f675eeb559ed7.zip external_webkit-31dbc523d9ee6fd7d7e46c540b5f675eeb559ed7.tar.gz external_webkit-31dbc523d9ee6fd7d7e46c540b5f675eeb559ed7.tar.bz2 |
Merge WebKit at r75315: Move Android-specific WebCore files to Source
This moves files in the following WebCore subdirectories ...
- bindings/js
- bindings/v8/custom
- plugins/android
- platform/android
- platform/graphics/android
- page/
- css/
- dom/
- loader/archive/android
Diffstat (limited to 'Source/WebCore/platform/graphics/android/GLUtils.cpp')
-rw-r--r-- | Source/WebCore/platform/graphics/android/GLUtils.cpp | 424 |
1 files changed, 424 insertions, 0 deletions
diff --git a/Source/WebCore/platform/graphics/android/GLUtils.cpp b/Source/WebCore/platform/graphics/android/GLUtils.cpp new file mode 100644 index 0000000..5eabb85 --- /dev/null +++ b/Source/WebCore/platform/graphics/android/GLUtils.cpp @@ -0,0 +1,424 @@ +/* + * Copyright 2010, The Android Open Source Project + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "config.h" +#include "GLUtils.h" + +#if USE(ACCELERATED_COMPOSITING) + +#include "ShaderProgram.h" + +#include <cutils/log.h> +#include <wtf/CurrentTime.h> +#include <wtf/text/CString.h> + +#undef XLOG +#define XLOG(...) android_printLog(ANDROID_LOG_DEBUG, "GLUtils", __VA_ARGS__) + +namespace WebCore { + +using namespace android; + +///////////////////////////////////////////////////////////////////////////////////////// +// Matrix utilities +///////////////////////////////////////////////////////////////////////////////////////// + +void GLUtils::toGLMatrix(GLfloat* flattened, const TransformationMatrix& m) +{ + flattened[0] = m.m11(); // scaleX + flattened[1] = m.m12(); // skewY + flattened[2] = m.m13(); + flattened[3] = m.m14(); // persp0 + flattened[4] = m.m21(); // skewX + flattened[5] = m.m22(); // scaleY + flattened[6] = m.m23(); + flattened[7] = m.m24(); // persp1 + flattened[8] = m.m31(); + flattened[9] = m.m32(); + flattened[10] = m.m33(); + flattened[11] = m.m34(); + flattened[12] = m.m41(); // transX + flattened[13] = m.m42(); // transY + flattened[14] = m.m43(); + flattened[15] = m.m44(); // persp2 +} + +void GLUtils::toSkMatrix(SkMatrix& matrix, const TransformationMatrix& m) +{ + matrix[0] = m.m11(); // scaleX + matrix[1] = m.m21(); // skewX + matrix[2] = m.m41(); // transX + matrix[3] = m.m12(); // skewY + matrix[4] = m.m22(); // scaleY + matrix[5] = m.m42(); // transY + matrix[6] = m.m14(); // persp0 + matrix[7] = m.m24(); // persp1 + matrix[8] = m.m44(); // persp2 +} + +void GLUtils::setOrthographicMatrix(TransformationMatrix& ortho, float left, float top, + float right, float bottom, float nearZ, float farZ) +{ + float deltaX = right - left; + float deltaY = top - bottom; + float deltaZ = farZ - nearZ; + if (!deltaX || !deltaY || !deltaZ) + return; + + ortho.setM11(2.0f / deltaX); + ortho.setM41(-(right + left) / deltaX); + ortho.setM22(2.0f / deltaY); + ortho.setM42(-(top + bottom) / deltaY); + ortho.setM33(-2.0f / deltaZ); + ortho.setM43(-(nearZ + farZ) / deltaZ); +} + +///////////////////////////////////////////////////////////////////////////////////////// +// GL & EGL error checks +///////////////////////////////////////////////////////////////////////////////////////// + +static void crashIfOOM(GLint errorCode) { + const GLint OOM_ERROR_CODE = 0x505; + if (errorCode == OOM_ERROR_CODE) { + XLOG("Fatal OOM detected."); + CRASH(); + } +} + +void GLUtils::checkEglError(const char* op, EGLBoolean returnVal) +{ + if (returnVal != EGL_TRUE) + XLOG("EGL ERROR - %s() returned %d\n", op, returnVal); + + for (EGLint error = eglGetError(); error != EGL_SUCCESS; error = eglGetError()) { + XLOG("after %s() eglError (0x%x)\n", op, error); + crashIfOOM(error); + } +} + +bool GLUtils::checkGlError(const char* op) +{ + bool ret = false; + for (GLint error = glGetError(); error; error = glGetError()) { + XLOG("GL ERROR - after %s() glError (0x%x)\n", op, error); + crashIfOOM(error); + ret = true; + } + return ret; +} + +bool GLUtils::checkGlErrorOn(void* p, const char* op) +{ + bool ret = false; + for (GLint error = glGetError(); error; error = glGetError()) { + XLOG("GL ERROR on %x - after %s() glError (0x%x)\n", p, op, error); + crashIfOOM(error); + ret = true; + } + return ret; +} + +///////////////////////////////////////////////////////////////////////////////////////// +// GL & EGL extension checks +///////////////////////////////////////////////////////////////////////////////////////// + +bool GLUtils::isEGLImageSupported() +{ + const char* eglExtensions = eglQueryString(eglGetCurrentDisplay(), EGL_EXTENSIONS); + const char* glExtensions = reinterpret_cast<const char*>(glGetString(GL_EXTENSIONS)); + + return eglExtensions && glExtensions + && strstr(eglExtensions, "EGL_KHR_image_base") + && strstr(eglExtensions, "EGL_KHR_gl_texture_2D_image") + && strstr(glExtensions, "GL_OES_EGL_image"); +} + +bool GLUtils::isEGLFenceSyncSupported() +{ + const char* eglExtensions = eglQueryString(eglGetCurrentDisplay(), EGL_EXTENSIONS); + return eglExtensions && strstr(eglExtensions, "EGL_KHR_fence_sync"); +} + +///////////////////////////////////////////////////////////////////////////////////////// +// Textures utilities +///////////////////////////////////////////////////////////////////////////////////////// + +static GLenum getInternalFormat(SkBitmap::Config config) +{ + switch (config) { + case SkBitmap::kA8_Config: + return GL_ALPHA; + case SkBitmap::kARGB_4444_Config: + return GL_RGBA; + case SkBitmap::kARGB_8888_Config: + return GL_RGBA; + case SkBitmap::kRGB_565_Config: + return GL_RGB; + default: + return -1; + } +} + +static GLenum getType(SkBitmap::Config config) +{ + switch (config) { + case SkBitmap::kA8_Config: + return GL_UNSIGNED_BYTE; + case SkBitmap::kARGB_4444_Config: + return GL_UNSIGNED_SHORT_4_4_4_4; + case SkBitmap::kARGB_8888_Config: + return GL_UNSIGNED_BYTE; + case SkBitmap::kIndex8_Config: + return -1; // No type for compressed data. + case SkBitmap::kRGB_565_Config: + return GL_UNSIGNED_SHORT_5_6_5; + default: + return -1; + } +} + +static EGLConfig defaultPbufferConfig(EGLDisplay display) +{ + EGLConfig config; + EGLint numConfigs; + + static const EGLint configAttribs[] = { + EGL_SURFACE_TYPE, EGL_PBUFFER_BIT, + EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT, + EGL_NONE + }; + + eglChooseConfig(display, configAttribs, &config, 1, &numConfigs); + GLUtils::checkEglError("eglPbufferConfig"); + if (numConfigs != 1) + LOGI("eglPbufferConfig failed (%d)\n", numConfigs); + + return config; +} + +static EGLSurface createPbufferSurface(EGLDisplay display, const EGLConfig& config, + EGLint* errorCode) +{ + const EGLint attribList[] = { + EGL_WIDTH, 1, + EGL_HEIGHT, 1, + EGL_NONE + }; + EGLSurface surface = eglCreatePbufferSurface(display, config, attribList); + + if (errorCode) + *errorCode = eglGetError(); + else + GLUtils::checkEglError("eglCreatePbufferSurface"); + + if (surface == EGL_NO_SURFACE) + return EGL_NO_SURFACE; + + return surface; +} + +EGLContext GLUtils::createBackgroundContext(EGLContext sharedContext) +{ + checkEglError("<init>"); + EGLDisplay display = eglGetDisplay(EGL_DEFAULT_DISPLAY); + checkEglError("eglGetDisplay"); + if (display == EGL_NO_DISPLAY) { + XLOG("eglGetDisplay returned EGL_NO_DISPLAY"); + return EGL_NO_CONTEXT; + } + + EGLint majorVersion; + EGLint minorVersion; + EGLBoolean returnValue = eglInitialize(display, &majorVersion, &minorVersion); + checkEglError("eglInitialize", returnValue); + if (returnValue != EGL_TRUE) { + XLOG("eglInitialize failed\n"); + return EGL_NO_CONTEXT; + } + + EGLConfig config = defaultPbufferConfig(display); + EGLSurface surface = createPbufferSurface(display, config, 0); + + EGLint surfaceConfigId; + EGLBoolean success = eglGetConfigAttrib(display, config, EGL_CONFIG_ID, &surfaceConfigId); + + EGLint contextAttribs[] = { EGL_CONTEXT_CLIENT_VERSION, 2, EGL_NONE }; + EGLContext context = eglCreateContext(display, config, sharedContext, contextAttribs); + checkEglError("eglCreateContext"); + if (context == EGL_NO_CONTEXT) { + XLOG("eglCreateContext failed\n"); + return EGL_NO_CONTEXT; + } + + returnValue = eglMakeCurrent(display, surface, surface, context); + checkEglError("eglMakeCurrent", returnValue); + if (returnValue != EGL_TRUE) { + XLOG("eglMakeCurrent failed\n"); + return EGL_NO_CONTEXT; + } + + return context; +} + +void GLUtils::deleteTexture(GLuint* texture) +{ + glDeleteTextures(1, texture); + GLUtils::checkGlError("glDeleteTexture"); + *texture = 0; +} + +GLuint GLUtils::createSampleColorTexture(int r, int g, int b) { + GLuint texture; + glGenTextures(1, &texture); + glPixelStorei(GL_UNPACK_ALIGNMENT, 1); + GLubyte pixels[4 *3] = { + r, g, b, + r, g, b, + r, g, b, + r, g, b + }; + glBindTexture(GL_TEXTURE_2D, texture); + GLUtils::checkGlError("glBindTexture"); + glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 2, 2, 0, GL_RGB, GL_UNSIGNED_BYTE, pixels); + GLUtils::checkGlError("glTexImage2D"); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); + return texture; +} + +GLuint GLUtils::createSampleTexture() +{ + GLuint texture; + glGenTextures(1, &texture); + glPixelStorei(GL_UNPACK_ALIGNMENT, 1); + GLubyte pixels[4 *3] = { + 255, 0, 0, + 0, 255, 0, + 0, 0, 255, + 255, 255, 0 + }; + glBindTexture(GL_TEXTURE_2D, texture); + GLUtils::checkGlError("glBindTexture"); + glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 2, 2, 0, GL_RGB, GL_UNSIGNED_BYTE, pixels); + GLUtils::checkGlError("glTexImage2D"); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); + return texture; +} + +void GLUtils::createTextureWithBitmap(GLuint texture, SkBitmap& bitmap, GLint filter) +{ + glPixelStorei(GL_UNPACK_ALIGNMENT, 1); + glBindTexture(GL_TEXTURE_2D, texture); + GLUtils::checkGlError("glBindTexture"); + SkBitmap::Config config = bitmap.getConfig(); + int internalformat = getInternalFormat(config); + int type = getType(config); + bitmap.lockPixels(); + glTexImage2D(GL_TEXTURE_2D, 0, internalformat, bitmap.width(), bitmap.height(), + 0, internalformat, type, bitmap.getPixels()); + bitmap.unlockPixels(); + if (GLUtils::checkGlError("glTexImage2D")) { + XLOG("GL ERROR: glTexImage2D parameters are : bitmap.width() %d, bitmap.height() %d," + " internalformat 0x%x, type 0x%x, bitmap.getPixels() %p", + bitmap.width(), bitmap.height(), internalformat, type, bitmap.getPixels()); + } + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, filter); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, filter); + + // The following is a workaround -- remove when EGLImage texture upload is fixed. + GLuint fboID; + glGenFramebuffers(1, &fboID); + glBindFramebuffer(GL_FRAMEBUFFER, fboID); + glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture, 0); + glCheckFramebufferStatus(GL_FRAMEBUFFER); // should return GL_FRAMEBUFFER_COMPLETE + + glBindFramebuffer(GL_FRAMEBUFFER, 0); // rebind the standard FBO + glDeleteFramebuffers(1, &fboID); +} + +void GLUtils::updateTextureWithBitmap(GLuint texture, SkBitmap& bitmap, GLint filter) +{ + glPixelStorei(GL_UNPACK_ALIGNMENT, 1); + glBindTexture(GL_TEXTURE_2D, texture); + GLUtils::checkGlError("glBindTexture"); + SkBitmap::Config config = bitmap.getConfig(); + int internalformat = getInternalFormat(config); + int type = getType(config); + bitmap.lockPixels(); + glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, bitmap.width(), bitmap.height(), + internalformat, type, bitmap.getPixels()); + bitmap.unlockPixels(); + if (GLUtils::checkGlError("glTexSubImage2D")) { + XLOG("GL ERROR: glTexSubImage2D parameters are : bitmap.width() %d, bitmap.height() %d," + " internalformat 0x%x, type 0x%x, bitmap.getPixels() %p", + bitmap.width(), bitmap.height(), internalformat, type, bitmap.getPixels()); + } + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, filter); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, filter); +} + +void GLUtils::updateTextureWithBitmap(GLuint texture, int x, int y, SkBitmap& bitmap, GLint filter) +{ + glPixelStorei(GL_UNPACK_ALIGNMENT, 1); + glBindTexture(GL_TEXTURE_2D, texture); + GLUtils::checkGlError("glBindTexture"); + SkBitmap::Config config = bitmap.getConfig(); + int internalformat = getInternalFormat(config); + int type = getType(config); + bitmap.lockPixels(); + glTexSubImage2D(GL_TEXTURE_2D, 0, x, y, bitmap.width(), bitmap.height(), + internalformat, type, bitmap.getPixels()); + bitmap.unlockPixels(); + if (GLUtils::checkGlError("glTexSubImage2D")) { + XLOG("GL ERROR: glTexSubImage2D parameters are : bitmap.width() %d, bitmap.height() %d," + " x %d, y %d, internalformat 0x%x, type 0x%x, bitmap.getPixels() %p", + bitmap.width(), bitmap.height(), x, y, internalformat, type, bitmap.getPixels()); + } + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, filter); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, filter); +} + +void GLUtils::createEGLImageFromTexture(GLuint texture, EGLImageKHR* image) +{ + EGLClientBuffer buffer = reinterpret_cast<EGLClientBuffer>(texture); + static const EGLint attr[] = { EGL_IMAGE_PRESERVED_KHR, EGL_TRUE, EGL_NONE }; + *image = eglCreateImageKHR(eglGetCurrentDisplay(), eglGetCurrentContext(), + EGL_GL_TEXTURE_2D_KHR, buffer, attr); + GLUtils::checkEglError("eglCreateImage", (*image != EGL_NO_IMAGE_KHR)); +} + +void GLUtils::createTextureFromEGLImage(GLuint texture, EGLImageKHR image, GLint filter) +{ + glBindTexture(GL_TEXTURE_2D, texture); + GLUtils::checkGlError("glBindTexture"); + glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, (GLeglImageOES)image); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, filter); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, filter); +} + +} // namespace WebCore + +#endif // USE(ACCELERATED_COMPOSITING) |