diff options
Diffstat (limited to 'libs/hwui/OpenGLRenderer.cpp')
| -rw-r--r-- | libs/hwui/OpenGLRenderer.cpp | 164 |
1 files changed, 113 insertions, 51 deletions
diff --git a/libs/hwui/OpenGLRenderer.cpp b/libs/hwui/OpenGLRenderer.cpp index 3c1fe2a8090a..da5b9dd0097a 100644 --- a/libs/hwui/OpenGLRenderer.cpp +++ b/libs/hwui/OpenGLRenderer.cpp @@ -41,6 +41,7 @@ namespace uirenderer { #define DEFAULT_PATH_CACHE_SIZE 6.0f #define DEFAULT_PATCH_CACHE_SIZE 100 #define DEFAULT_GRADIENT_CACHE_SIZE 0.5f +#define DEFAULT_DROP_SHADOW_CACHE_SIZE 1.0f #define REQUIRED_TEXTURE_UNITS_COUNT 3 @@ -107,7 +108,8 @@ OpenGLRenderer::OpenGLRenderer(): mLayerCache(MB(DEFAULT_LAYER_CACHE_SIZE)), mGradientCache(MB(DEFAULT_GRADIENT_CACHE_SIZE)), mPathCache(MB(DEFAULT_PATH_CACHE_SIZE)), - mPatchCache(DEFAULT_PATCH_CACHE_SIZE) { + mPatchCache(DEFAULT_PATCH_CACHE_SIZE), + mDropShadowCache(MB(DEFAULT_DROP_SHADOW_CACHE_SIZE)) { LOGD("Create OpenGLRenderer"); char property[PROPERTY_VALUE_MAX]; @@ -139,9 +141,18 @@ OpenGLRenderer::OpenGLRenderer(): LOGD(" Using default path cache size of %.2fMB", DEFAULT_PATH_CACHE_SIZE); } + if (property_get(PROPERTY_DROP_SHADOW_CACHE_SIZE, property, NULL) > 0) { + LOGD(" Setting drop shadow cache size to %sMB", property); + mDropShadowCache.setMaxSize(MB(atof(property))); + } else { + LOGD(" Using default drop shadow cache size of %.2fMB", DEFAULT_DROP_SHADOW_CACHE_SIZE); + } + mDropShadowCache.setFontRenderer(mFontRenderer); + mCurrentProgram = NULL; mShader = NULL; mColorFilter = NULL; + mHasShadow = false; memcpy(mMeshVertices, gMeshVertices, sizeof(gMeshVertices)); @@ -163,6 +174,7 @@ OpenGLRenderer::~OpenGLRenderer() { mPathCache.clear(); mPatchCache.clear(); mProgramCache.clear(); + mDropShadowCache.clear(); } /////////////////////////////////////////////////////////////////////////////// @@ -550,6 +562,78 @@ void OpenGLRenderer::drawRect(float left, float top, float right, float bottom, drawColorRect(left, top, right, bottom, color, mode); } +void OpenGLRenderer::renderShadow(const ShadowTexture* texture, float x, float y, + SkXfermode::Mode mode) { + const float sx = x - texture->left + mShadowDx; + const float sy = y - texture->top + mShadowDy; + + const GLfloat a = ((mShadowColor >> 24) & 0xFF) / 255.0f; + const GLfloat r = a * ((mShadowColor >> 16) & 0xFF) / 255.0f; + const GLfloat g = a * ((mShadowColor >> 8) & 0xFF) / 255.0f; + const GLfloat b = a * ((mShadowColor ) & 0xFF) / 255.0f; + + GLuint textureUnit = 0; + renderTextureAlpha8(texture, textureUnit, sx, sy, r, g, b, a, mode, false); +} + +void OpenGLRenderer::renderTextureAlpha8(const Texture* texture, GLuint& textureUnit, + float x, float y, float r, float g, float b, float a, SkXfermode::Mode mode, + bool applyFilters) { + // Describe the required shaders + ProgramDescription description; + description.hasTexture = true; + description.hasAlpha8Texture = true; + + if (applyFilters) { + if (mShader) { + mShader->describe(description, mExtensions); + } + if (mColorFilter) { + mColorFilter->describe(description, mExtensions); + } + } + + // Build and use the appropriate shader + useProgram(mProgramCache.get(description)); + + // Setup the blending mode + chooseBlending(true, mode); + bindTexture(texture->id, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE, textureUnit); + glUniform1i(mCurrentProgram->getUniform("sampler"), textureUnit); + + int texCoordsSlot = mCurrentProgram->getAttrib("texCoords"); + glEnableVertexAttribArray(texCoordsSlot); + + // Setup attributes + glVertexAttribPointer(mCurrentProgram->position, 2, GL_FLOAT, GL_FALSE, + gMeshStride, &mMeshVertices[0].position[0]); + glVertexAttribPointer(texCoordsSlot, 2, GL_FLOAT, GL_FALSE, + gMeshStride, &mMeshVertices[0].texture[0]); + + // Setup uniforms + mModelView.loadTranslate(x, y, 0.0f); + mModelView.scale(texture->width, texture->height, 1.0f); + mCurrentProgram->set(mOrthoMatrix, mModelView, mSnapshot->transform); + + glUniform4f(mCurrentProgram->color, r, g, b, a); + + textureUnit++; + if (applyFilters) { + // Setup attributes and uniforms required by the shaders + if (mShader) { + mShader->setupProgram(mCurrentProgram, mModelView, *mSnapshot, &textureUnit); + } + if (mColorFilter) { + mColorFilter->setupProgram(mCurrentProgram); + } + } + + // Draw the mesh + glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); + + glDisableVertexAttribArray(texCoordsSlot); +} + #define kStdStrikeThru_Offset (-6.0f / 21.0f) #define kStdUnderline_Offset (1.0f / 9.0f) #define kStdUnderline_Thickness (1.0f / 18.0f) @@ -578,6 +662,15 @@ void OpenGLRenderer::drawText(const char* text, int bytesCount, int count, SkXfermode::Mode mode; getAlphaAndMode(paint, &alpha, &mode); + mFontRenderer.setFont(paint, SkTypeface::UniqueID(paint->getTypeface()), paint->getTextSize()); + if (mHasShadow) { + glActiveTexture(gTextureUnits[0]); + const ShadowTexture* shadow = mDropShadowCache.get(paint, text, bytesCount, + count, mShadowRadius); + const AutoTexture autoCleanup(shadow); + renderShadow(shadow, x, y, mode); + } + uint32_t color = paint->getColor(); const GLfloat a = alpha / 255.0f; const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; @@ -624,7 +717,6 @@ void OpenGLRenderer::drawText(const char* text, int bytesCount, int count, } const Rect& clip = mSnapshot->getLocalClip(); - mFontRenderer.setFont(paint, SkTypeface::UniqueID(paint->getTypeface()), paint->getTextSize()); mFontRenderer.renderText(paint, &clip, text, 0, bytesCount, count, x, y); glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); @@ -693,55 +785,9 @@ void OpenGLRenderer::drawPath(SkPath* path, SkPaint* paint) { const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; const GLfloat b = a * ((color ) & 0xFF) / 255.0f; - // Describe the required shaders - ProgramDescription description; - description.hasTexture = true; - description.hasAlpha8Texture = true; - if (mShader) { - mShader->describe(description, mExtensions); - } - if (mColorFilter) { - mColorFilter->describe(description, mExtensions); - } - - // Build and use the appropriate shader - useProgram(mProgramCache.get(description)); - - // Setup the blending mode - chooseBlending(true, mode); - bindTexture(texture->id, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE, textureUnit); - glUniform1i(mCurrentProgram->getUniform("sampler"), textureUnit); - - int texCoordsSlot = mCurrentProgram->getAttrib("texCoords"); - glEnableVertexAttribArray(texCoordsSlot); - - // Setup attributes - glVertexAttribPointer(mCurrentProgram->position, 2, GL_FLOAT, GL_FALSE, - gMeshStride, &mMeshVertices[0].position[0]); - glVertexAttribPointer(texCoordsSlot, 2, GL_FLOAT, GL_FALSE, - gMeshStride, &mMeshVertices[0].texture[0]); - - // Setup uniforms - mModelView.loadTranslate(texture->left - texture->offset, - texture->top - texture->offset, 0.0f); - mModelView.scale(texture->width, texture->height, 1.0f); - mCurrentProgram->set(mOrthoMatrix, mModelView, mSnapshot->transform); - - glUniform4f(mCurrentProgram->color, r, g, b, a); - - textureUnit++; - // Setup attributes and uniforms required by the shaders - if (mShader) { - mShader->setupProgram(mCurrentProgram, mModelView, *mSnapshot, &textureUnit); - } - if (mColorFilter) { - mColorFilter->setupProgram(mCurrentProgram); - } - - // Draw the mesh - glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); - - glDisableVertexAttribArray(texCoordsSlot); + const float x = texture->left - texture->offset; + const float y = texture->top - texture->offset; + renderTextureAlpha8(texture, textureUnit, x, y, r, g, b, a, mode, true); } /////////////////////////////////////////////////////////////////////////////// @@ -772,6 +818,22 @@ void OpenGLRenderer::setupColorFilter(SkiaColorFilter* filter) { } /////////////////////////////////////////////////////////////////////////////// +// Drop shadow +/////////////////////////////////////////////////////////////////////////////// + +void OpenGLRenderer::resetShadow() { + mHasShadow = false; +} + +void OpenGLRenderer::setupShadow(float radius, float dx, float dy, int color) { + mHasShadow = true; + mShadowRadius = radius; + mShadowDx = dx; + mShadowDy = dy; + mShadowColor = color; +} + +/////////////////////////////////////////////////////////////////////////////// // Drawing implementation /////////////////////////////////////////////////////////////////////////////// |