| /* Copyright 2014 The Chromium Authors. All rights reserved. |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| [generate_thunk] |
| |
| label Chrome { |
| [channel=dev] M37 = 0.1, |
| [channel=dev] M38 = 0.2 |
| }; |
| |
| /** |
| * This enumeration contains blend modes used for computing the result pixels |
| * based on the source RGBA values in layers with the RGBA values that are |
| * already in the destination framebuffer. |
| * alpha_src, color_src: source alpha and color. |
| * alpha_dst, color_dst: destination alpha and color (before compositing). |
| * Below descriptions of the blend modes assume the colors are pre-multiplied. |
| * This interface is still in development (Dev API status) and may change, |
| * so is only supported on Dev channel and Canary currently. |
| */ |
| enum PP_BlendMode { |
| /** |
| * No blending, copy source to the destination directly. |
| */ |
| PP_BLENDMODE_NONE, |
| |
| /** |
| * Source is placed over the destination. |
| * Resulting alpha = alpha_src + alpha_dst - alpha_src * alpha_dst |
| * Resulting color = color_src + color_dst * (1 - alpha_src) |
| */ |
| PP_BLENDMODE_SRC_OVER, |
| |
| /** |
| * The last blend mode. |
| */ |
| PP_BLENDMODE_LAST = PP_BLENDMODE_SRC_OVER |
| }; |
| |
| /** |
| * Defines the <code>PPB_CompositorLayer</code> interface. It is used by |
| * <code>PPB_Compositor</code>. |
| */ |
| interface PPB_CompositorLayer { |
| /** |
| * Determines if a resource is a compositor layer resource. |
| * |
| * @param[in] resource The <code>PP_Resource</code> to test. |
| * |
| * @return A <code>PP_Bool</code> with <code>PP_TRUE</code> if the given |
| * resource is a compositor layer resource or <code>PP_FALSE</code> |
| * otherwise. |
| */ |
| PP_Bool IsCompositorLayer([in] PP_Resource resource); |
| |
| /** |
| * Sets the color of a solid color layer. If the layer is uninitialized, |
| * it will initialize the layer first, and then set its color. |
| * If the layer has been initialized to another kind of layer, the layer will |
| * not be changed, and <code>PP_ERROR_BADARGUMENT</code> will be returned. |
| * |
| * param[in] layer A <code>PP_Resource</code> corresponding to a compositor |
| * layer resource. |
| * param[in] red A <code>float</code> for the red color component. It will be |
| * clamped to [0, 1]. |
| * param[in] green A <code>float</code> for the green color component. It will |
| * be clamped to [0, 1]. |
| * param[in] blue A <code>float</code> for the blue color component. It will |
| * be clamped to [0, 1]. |
| * param[in] alpha A <code>float</code> for the alpha color component. It will |
| * be clamped to [0, 1]. |
| * param[in] size A <code>PP_Size</code> for the size of the layer before |
| * transform. |
| * |
| * @return An int32_t containing a result code from <code>pp_errors.h</code>. |
| */ |
| int32_t SetColor([in] PP_Resource layer, |
| [in] float_t red, |
| [in] float_t green, |
| [in] float_t blue, |
| [in] float_t alpha, |
| [in] PP_Size size); |
| |
| /** |
| * Sets the texture of a texture layer. If the layer is uninitialized, |
| * it will initialize the layer first, and then set its texture. |
| * The source rect will be set to ((0, 0), (1, 1)). If the layer has been |
| * initialized to another kind of layer, the layer will not be changed, |
| * and <code>PP_ERROR_BADARGUMENT</code> will be returned. |
| * |
| * param[in] layer A <code>PP_Resource</code> corresponding to a compositor |
| * layer resource. |
| * param[in] context A <code>PP_Resource</code> corresponding to a graphics |
| * 3d resource which owns the GL texture. |
| * param[in] texture A GL texture object id. |
| * param[in] size A <code>PP_Size</code> for the size of the layer before |
| * transform. |
| * param[in] cc A <code>PP_CompletionCallback</code> to be called when |
| * the texture is released by Chromium compositor. |
| * |
| * @return An int32_t containing a result code from <code>pp_errors.h</code>. |
| */ |
| int32_t SetTexture([in] PP_Resource layer, |
| [in] PP_Resource context, |
| [in] uint32_t texture, |
| [in] PP_Size size, |
| [in] PP_CompletionCallback cc); |
| |
| /** |
| * Sets the texture of a texture layer. If the layer is uninitialized, |
| * it will initialize the layer first, and then set its texture. |
| * The source rect will be set to ((0, 0), (1, 1)). If the layer has been |
| * initialized to another kind of layer, the layer will not be changed, |
| * and <code>PP_ERROR_BADARGUMENT</code> will be returned. |
| * |
| * param[in] layer A <code>PP_Resource</code> corresponding to a compositor |
| * layer resource. |
| * param[in] context A <code>PP_Resource</code> corresponding to a graphics |
| * 3d resource which owns the GL texture. |
| * param[in] target GL texture target (GL_TEXTURE_2D, etc). |
| * param[in] texture A GL texture object id. |
| * param[in] size A <code>PP_Size</code> for the size of the layer before |
| * transform. |
| * param[in] cc A <code>PP_CompletionCallback</code> to be called when |
| * the texture is released by Chromium compositor. |
| * |
| * @return An int32_t containing a result code from <code>pp_errors.h</code>. |
| */ |
| [version = 0.2] |
| int32_t SetTexture([in] PP_Resource layer, |
| [in] PP_Resource context, |
| [in] uint32_t target, |
| [in] uint32_t texture, |
| [in] PP_Size size, |
| [in] PP_CompletionCallback cc); |
| |
| /** |
| * Sets the image of an image layer. If the layer is uninitialized, |
| * it will initialize the layer first, and then set its image. |
| * The layer size will be set to the image's size. The source rect will be set |
| * to the full image. If the layer has been initialized to another kind of |
| * layer, the layer will not be changed, and <code>PP_ERROR_BADARGUMENT</code> |
| * will be returned. |
| * |
| * param[in] layer A <code>PP_Resource</code> corresponding to a compositor |
| * layer resource. |
| * param[in] image_data A <code>PP_Resource</code> corresponding to |
| * an image data resource. |
| * param[in] size A <code>PP_Size</code> for the size of the layer before |
| * transform. If NULL, the image's size will be used. |
| * param[in] cc A <code>PP_CompletionCallback</code> to be called when |
| * the image data is released by Chromium compositor. |
| * |
| * @return An int32_t containing a result code from <code>pp_errors.h</code>. |
| */ |
| int32_t SetImage([in] PP_Resource layer, |
| [in] PP_Resource image_data, |
| [in] PP_Size size, |
| [in] PP_CompletionCallback cc); |
| |
| /** |
| * Sets a clip rectangle for a compositor layer. The Chromium compositor |
| * applies a transform matrix on the layer first, and then clips the layer |
| * with the rectangle. |
| * |
| * param[in] layer A <code>PP_Resource</code> corresponding to a compositor |
| * layer resource. |
| * param[in] rect The clip rectangle. The origin is top-left corner of |
| * the plugin. |
| * |
| * @return An int32_t containing a result code from <code>pp_errors.h</code>. |
| */ |
| int32_t SetClipRect([in] PP_Resource layer, |
| [in] PP_Rect rect); |
| |
| /** |
| * Sets a transform matrix which is used to composite the layer. |
| * |
| * param[in] layer A <code>PP_Resource</code> corresponding to a compositor |
| * layer resource. |
| * param[in] matrix A float array with 16 elements. The matrix is |
| * column major. The default transform matrix is an identity matrix. |
| * |
| * @return An int32_t containing a result code from <code>pp_errors.h</code>. |
| */ |
| int32_t SetTransform([in] PP_Resource layer, |
| [in] float_t[16] matrix); |
| |
| /** |
| * Sets the opacity value which will be applied to the layer. The effective |
| * value of each pixel is computed as: |
| * |
| * if (premult_alpha) |
| * pixel.rgb = pixel.rgb * opacity; |
| * pixel.a = pixel.a * opactiy; |
| * |
| * param[in] layer A <code>PP_Resource</code> corresponding to a compositor |
| * layer resource. |
| * param[in] opacity A <code>float</code> for the opacity value, The default |
| * value is 1.0f. |
| * |
| * @return An int32_t containing a result code from <code>pp_errors.h</code>. |
| */ |
| int32_t SetOpacity([in] PP_Resource layer, |
| [in] float_t opacity); |
| |
| /** |
| * Sets the blend mode which is used to composite the layer. |
| * |
| * param[in] layer A <code>PP_Resource</code> corresponding to a compositor |
| * layer resource. |
| * param[in] mode A <code>PP_BlendMode</code>. The default mode is |
| * <code>PP_BLENDMODE_SRC_OVER</code>. |
| * |
| * @return An int32_t containing a result code from <code>pp_errors.h</code>. |
| */ |
| int32_t SetBlendMode([in] PP_Resource layer, |
| [in] PP_BlendMode mode); |
| |
| /** |
| * Sets a source rectangle for a texture layer or an image layer. |
| * |
| * param[in] layer A <code>PP_Resource</code> corresponding to a compositor |
| * layer resource. |
| * param[in] rect A <code>PP_FloatRect</code> for an area of the source to |
| * consider. For a texture layer, rect is in uv coordinates. For an image |
| * layer, rect is in pixels. If the rect is beyond the dimensions of the |
| * texture or image, <code>PP_ERROR_BADARGUMENT</code> will be returned. |
| * If the layer size does not match the source rect size, bilinear scaling |
| * will be used. |
| * |
| * @return An int32_t containing a result code from <code>pp_errors.h</code>. |
| */ |
| int32_t SetSourceRect([in] PP_Resource layer, |
| [in] PP_FloatRect rect); |
| |
| /** |
| * Sets the premultiplied alpha for an texture layer. |
| * |
| * param[in] layer A <code>PP_Resource</code> corresponding to a compositor |
| * layer resource. |
| * param[in] premult A <code>PP_Bool</code> with <code>PP_TRUE</code> if |
| * pre-multiplied alpha is used. |
| * |
| * @return An int32_t containing a result code from <code>pp_errors.h</code>. |
| */ |
| int32_t SetPremultipliedAlpha([in] PP_Resource layer, |
| [in] PP_Bool premult); |
| }; |
