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      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
      3 // found in the LICENSE file.
      4 
      5 #ifndef GPU_COMMAND_BUFFER_CLIENT_GLES2_CMD_HELPER_H_
      6 #define GPU_COMMAND_BUFFER_CLIENT_GLES2_CMD_HELPER_H_
      7 
      8 #include "gpu/command_buffer/client/cmd_buffer_helper.h"
      9 #include "gpu/command_buffer/common/gles2_cmd_format.h"
     10 #include "gpu/gpu_export.h"
     11 
     12 namespace gpu {
     13 namespace gles2 {
     14 
     15 // A class that helps write GL command buffers.
     16 class GPU_EXPORT GLES2CmdHelper : public CommandBufferHelper {
     17  public:
     18   explicit GLES2CmdHelper(CommandBuffer* command_buffer);
     19   virtual ~GLES2CmdHelper();
     20 
     21   // Include the auto-generated part of this class. We split this because it
     22   // means we can easily edit the non-auto generated parts right here in this
     23   // file instead of having to edit some template or the code generator.
     24   #include "gpu/command_buffer/client/gles2_cmd_helper_autogen.h"
     25 
     26   // Helpers that could not be auto-generated.
     27   // TODO(gman): Auto generate these.
     28   void GetAttribLocation(
     29       GLuint program, uint32 name_bucket_id,
     30       uint32 location_shm_id, uint32 location_shm_offset) {
     31     gles2::cmds::GetAttribLocation* c =
     32         GetCmdSpace<gles2::cmds::GetAttribLocation>();
     33     if (c) {
     34       c->Init(program, name_bucket_id, location_shm_id, location_shm_offset);
     35     }
     36   }
     37 
     38   void GetUniformLocation(
     39       GLuint program, uint32 name_bucket_id,
     40       uint32 location_shm_id, uint32 location_shm_offset) {
     41     gles2::cmds::GetUniformLocation* c =
     42         GetCmdSpace<gles2::cmds::GetUniformLocation>();
     43     if (c) {
     44       c->Init(program, name_bucket_id, location_shm_id, location_shm_offset);
     45     }
     46   }
     47 
     48   void CreateAndConsumeTextureCHROMIUMImmediate(GLenum target,
     49                                                 uint32_t client_id,
     50                                                 const GLbyte* _mailbox) {
     51     const uint32_t size =
     52         gles2::cmds::CreateAndConsumeTextureCHROMIUMImmediate::ComputeSize();
     53     gles2::cmds::CreateAndConsumeTextureCHROMIUMImmediate* c =
     54         GetImmediateCmdSpaceTotalSize<
     55             gles2::cmds::CreateAndConsumeTextureCHROMIUMImmediate>(size);
     56     if (c) {
     57       c->Init(target, client_id, _mailbox);
     58     }
     59   }
     60 
     61  private:
     62   DISALLOW_COPY_AND_ASSIGN(GLES2CmdHelper);
     63 };
     64 
     65 }  // namespace gles2
     66 }  // namespace gpu
     67 
     68 #endif  // GPU_COMMAND_BUFFER_CLIENT_GLES2_CMD_HELPER_H_
     69 
     70