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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef CONTENT_COMMON_GPU_CLIENT_GL_HELPER_H_ | 5 #ifndef CONTENT_COMMON_GPU_CLIENT_GL_HELPER_H_ |
6 #define CONTENT_COMMON_GPU_CLIENT_GL_HELPER_H_ | 6 #define CONTENT_COMMON_GPU_CLIENT_GL_HELPER_H_ |
7 | 7 |
8 #include "base/atomicops.h" | 8 #include "base/atomicops.h" |
9 #include "base/basictypes.h" | 9 #include "base/basictypes.h" |
10 #include "base/callback.h" | 10 #include "base/callback.h" |
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174 // representation. |callback| is invoked with the copy result when the copy | 174 // representation. |callback| is invoked with the copy result when the copy |
175 // operation has completed. | 175 // operation has completed. |
176 // Note that the src_texture will have the min/mag filter set to GL_LINEAR | 176 // Note that the src_texture will have the min/mag filter set to GL_LINEAR |
177 // and wrap_s/t set to CLAMP_TO_EDGE in this call. | 177 // and wrap_s/t set to CLAMP_TO_EDGE in this call. |
178 void CropScaleReadbackAndCleanTexture( | 178 void CropScaleReadbackAndCleanTexture( |
179 GLuint src_texture, | 179 GLuint src_texture, |
180 const gfx::Size& src_size, | 180 const gfx::Size& src_size, |
181 const gfx::Rect& src_subrect, | 181 const gfx::Rect& src_subrect, |
182 const gfx::Size& dst_size, | 182 const gfx::Size& dst_size, |
183 unsigned char* out, | 183 unsigned char* out, |
| 184 bool readback_config_rgb565, |
184 const base::Callback<void(bool)>& callback); | 185 const base::Callback<void(bool)>& callback); |
185 | 186 |
186 // Copies the block of pixels specified with |src_subrect| from |src_mailbox|, | 187 // Copies the block of pixels specified with |src_subrect| from |src_mailbox|, |
187 // scales it to |dst_size|, and writes it into |out|. | 188 // scales it to |dst_size|, and writes it into |out|. |
188 // |src_size| is the size of |src_mailbox|. The result is of format GL_BGRA | 189 // |src_size| is the size of |src_mailbox|. The result is of format GL_BGRA |
189 // and is potentially flipped vertically to make it a correct image | 190 // and is potentially flipped vertically to make it a correct image |
190 // representation. |callback| is invoked with the copy result when the copy | 191 // representation. |callback| is invoked with the copy result when the copy |
191 // operation has completed. | 192 // operation has completed. |
192 // Note that the texture bound to src_mailbox will have the min/mag filter set | 193 // Note that the texture bound to src_mailbox will have the min/mag filter set |
193 // to GL_LINEAR and wrap_s/t set to CLAMP_TO_EDGE in this call. src_mailbox is | 194 // to GL_LINEAR and wrap_s/t set to CLAMP_TO_EDGE in this call. src_mailbox is |
194 // assumed to be GL_TEXTURE_2D. | 195 // assumed to be GL_TEXTURE_2D. |
195 void CropScaleReadbackAndCleanMailbox( | 196 void CropScaleReadbackAndCleanMailbox( |
196 const gpu::Mailbox& src_mailbox, | 197 const gpu::Mailbox& src_mailbox, |
197 uint32 sync_point, | 198 uint32 sync_point, |
198 const gfx::Size& src_size, | 199 const gfx::Size& src_size, |
199 const gfx::Rect& src_subrect, | 200 const gfx::Rect& src_subrect, |
200 const gfx::Size& dst_size, | 201 const gfx::Size& dst_size, |
201 unsigned char* out, | 202 unsigned char* out, |
| 203 bool readback_config_rgb565, |
202 const base::Callback<void(bool)>& callback); | 204 const base::Callback<void(bool)>& callback); |
203 | 205 |
204 // Copies the texture data out of |texture| into |out|. |size| is the | 206 // Copies the texture data out of |texture| into |out|. |size| is the |
205 // size of the texture. No post processing is applied to the pixels. The | 207 // size of the texture. No post processing is applied to the pixels. The |
206 // texture is assumed to have a format of GL_RGBA with a pixel type of | 208 // texture is assumed to have a format of GL_RGBA with a pixel type of |
207 // GL_UNSIGNED_BYTE. This is a blocking call that calls glReadPixels on the | 209 // GL_UNSIGNED_BYTE. This is a blocking call that calls glReadPixels on the |
208 // current OpenGL context. | 210 // current OpenGL context. |
209 void ReadbackTextureSync(GLuint texture, | 211 void ReadbackTextureSync(GLuint texture, |
210 const gfx::Rect& src_rect, | 212 const gfx::Rect& src_rect, |
211 unsigned char* out); | 213 unsigned char* out); |
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259 // Resizes the texture's size to |size|. | 261 // Resizes the texture's size to |size|. |
260 void ResizeTexture(GLuint texture, const gfx::Size& size); | 262 void ResizeTexture(GLuint texture, const gfx::Size& size); |
261 | 263 |
262 // Copies the framebuffer data given in |rect| to |texture|. | 264 // Copies the framebuffer data given in |rect| to |texture|. |
263 void CopyTextureSubImage(GLuint texture, const gfx::Rect& rect); | 265 void CopyTextureSubImage(GLuint texture, const gfx::Rect& rect); |
264 | 266 |
265 // Copies the all framebuffer data to |texture|. |size| specifies the | 267 // Copies the all framebuffer data to |texture|. |size| specifies the |
266 // size of the framebuffer. | 268 // size of the framebuffer. |
267 void CopyTextureFullImage(GLuint texture, const gfx::Size& size); | 269 void CopyTextureFullImage(GLuint texture, const gfx::Size& size); |
268 | 270 |
| 271 // Check whether rgb565 readback is supported or not. |
| 272 bool CanUseRgb565Readback(); |
| 273 |
269 // A scaler will cache all intermediate textures and programs | 274 // A scaler will cache all intermediate textures and programs |
270 // needed to scale from a specified size to a destination size. | 275 // needed to scale from a specified size to a destination size. |
271 // If the source or destination sizes changes, you must create | 276 // If the source or destination sizes changes, you must create |
272 // a new scaler. | 277 // a new scaler. |
273 class CONTENT_EXPORT ScalerInterface { | 278 class CONTENT_EXPORT ScalerInterface { |
274 public: | 279 public: |
275 ScalerInterface() {} | 280 ScalerInterface() {} |
276 virtual ~ScalerInterface() {} | 281 virtual ~ScalerInterface() {} |
277 | 282 |
278 // Note that the src_texture will have the min/mag filter set to GL_LINEAR | 283 // Note that the src_texture will have the min/mag filter set to GL_LINEAR |
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346 virtual void ReadbackYUV(const gpu::Mailbox& mailbox, | 351 virtual void ReadbackYUV(const gpu::Mailbox& mailbox, |
347 uint32 sync_point, | 352 uint32 sync_point, |
348 const scoped_refptr<media::VideoFrame>& target, | 353 const scoped_refptr<media::VideoFrame>& target, |
349 const base::Callback<void(bool)>& callback) = 0; | 354 const base::Callback<void(bool)>& callback) = 0; |
350 virtual GLHelper::ScalerInterface* scaler() = 0; | 355 virtual GLHelper::ScalerInterface* scaler() = 0; |
351 }; | 356 }; |
352 | 357 |
353 } // namespace content | 358 } // namespace content |
354 | 359 |
355 #endif // CONTENT_COMMON_GPU_CLIENT_GL_HELPER_H_ | 360 #endif // CONTENT_COMMON_GPU_CLIENT_GL_HELPER_H_ |
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