diff options
Diffstat (limited to 'content/common/gpu/client')
| -rw-r--r-- | content/common/gpu/client/gl_helper.cc | 35 | ||||
| -rw-r--r-- | content/common/gpu/client/gl_helper.h | 13 |
2 files changed, 48 insertions, 0 deletions
diff --git a/content/common/gpu/client/gl_helper.cc b/content/common/gpu/client/gl_helper.cc index 849998c..2ce57d9 100644 --- a/content/common/gpu/client/gl_helper.cc +++ b/content/common/gpu/client/gl_helper.cc @@ -634,6 +634,41 @@ void GLHelper::CopySubBufferDamage(WebKit::WebGLId texture, } } +WebKit::WebGLId GLHelper::CreateTexture() { + WebKit::WebGLId texture = context_->createTexture(); + content::ScopedTextureBinder<GL_TEXTURE_2D> texture_binder(context_, + texture); + context_->texParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); + context_->texParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + context_->texParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); + context_->texParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); + return texture; +} + +void GLHelper::ResizeTexture(WebKit::WebGLId texture, const gfx::Size& size) { + content::ScopedTextureBinder<GL_TEXTURE_2D> texture_binder(context_, texture); + context_->texImage2D(GL_TEXTURE_2D, 0, GL_RGB, + size.width(), size.height(), 0, + GL_RGB, GL_UNSIGNED_BYTE, NULL); +} + +void GLHelper::CopyTextureSubImage(WebKit::WebGLId texture, + const gfx::Rect& rect) { + content::ScopedTextureBinder<GL_TEXTURE_2D> texture_binder(context_, texture); + context_->copyTexSubImage2D(GL_TEXTURE_2D, 0, + rect.x(), rect.y(), + rect.x(), rect.y(), rect.width(), rect.height()); +} + +void GLHelper::CopyTextureFullImage(WebKit::WebGLId texture, + const gfx::Size& size) { + content::ScopedTextureBinder<GL_TEXTURE_2D> texture_binder(context_, texture); + context_->copyTexImage2D(GL_TEXTURE_2D, 0, + GL_RGB, + 0, 0, + size.width(), size.height(), 0); +} + void GLHelper::CopyTextureToImpl::ReadbackPlane( TextureFrameBufferPair* source, media::VideoFrame* target, diff --git a/content/common/gpu/client/gl_helper.h b/content/common/gpu/client/gl_helper.h index c312b9d..849ffc2 100644 --- a/content/common/gpu/client/gl_helper.h +++ b/content/common/gpu/client/gl_helper.h @@ -262,6 +262,19 @@ class CONTENT_EXPORT GLHelper { const SkRegion& new_damage, const SkRegion& old_damage); + // Simply creates a texture. + WebKit::WebGLId CreateTexture(); + + // Resizes the texture's size to |size|. + void ResizeTexture(WebKit::WebGLId texture, const gfx::Size& size); + + // Copies the framebuffer data given in |rect| to |texture|. + void CopyTextureSubImage(WebKit::WebGLId texture, const gfx::Rect& rect); + + // Copies the all framebuffer data to |texture|. |size| specifies the + // size of the framebuffer. + void CopyTextureFullImage(WebKit::WebGLId texture, const gfx::Size& size); + // A scaler will cache all intermediate textures and programs // needed to scale from a specified size to a destination size. // If the source or destination sizes changes, you must create |