Adding uniform block handling for modern shaders
[platform/core/uifw/dali-adaptor.git] / dali / internal / graphics / gles-impl / gles3-graphics-memory.cpp
1 /*
2  * Copyright (c) 2023 Samsung Electronics Co., Ltd.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  *
16  */
17
18 // CLASS HEADER
19 #include "gles3-graphics-memory.h"
20
21 // EXTERNAL INCLUDES
22 #include <dali/integration-api/gl-abstraction.h>
23 #include <dali/integration-api/gl-defines.h>
24
25 // INTERNAL INCLUDES
26 #include <dali/internal/graphics/common/graphics-interface.h>
27 #include "egl-graphics-controller.h"
28
29 namespace Dali::Graphics::GLES
30 {
31 Memory3::Memory3(const Graphics::MapBufferInfo& mapInfo, EglGraphicsController& controller)
32 : mController(controller)
33 {
34   mMapBufferInfo = mapInfo;
35   mMapObjectType = MapObjectType::BUFFER;
36 }
37
38 Memory3::Memory3(const Graphics::MapTextureInfo& mapInfo, EglGraphicsController& controller)
39 : mController(controller)
40 {
41   mMapTextureInfo = mapInfo;
42   mMapObjectType  = MapObjectType::TEXTURE;
43 }
44
45 Memory3::~Memory3()
46 {
47   Unlock(true);
48 }
49
50 void* Memory3::LockRegion(uint32_t offset, uint32_t size)
51 {
52   auto gl = mController.GetGL();
53
54   if(mMapObjectType == MapObjectType::BUFFER)
55   {
56     auto buffer = static_cast<GLES::Buffer*>(mMapBufferInfo.buffer);
57
58     if(buffer->IsCPUAllocated())
59     {
60       using Ptr      = char*;
61       mMappedPointer = Ptr(buffer->GetCPUAllocatedAddress()) + offset;
62     }
63     else
64     {
65       gl->BindBuffer(GL_COPY_WRITE_BUFFER, buffer->GetGLBuffer());
66       void* ptr      = nullptr;
67       ptr            = gl->MapBufferRange(GL_COPY_WRITE_BUFFER, GLintptr(mMapBufferInfo.offset), GLsizeiptr(mMapBufferInfo.size), GL_MAP_WRITE_BIT);
68       mMappedPointer = ptr;
69     }
70     return mMappedPointer;
71   }
72
73   return nullptr;
74 }
75
76 void Memory3::Unlock(bool flush)
77 {
78   auto gl = mController.GetGL();
79
80   if(mMapObjectType == MapObjectType::BUFFER && mMappedPointer)
81   {
82     auto buffer = static_cast<GLES::Buffer*>(mMapBufferInfo.buffer);
83     if(!buffer->IsCPUAllocated())
84     {
85       gl->BindBuffer(GL_COPY_WRITE_BUFFER, buffer->GetGLBuffer());
86       gl->UnmapBuffer(GL_COPY_WRITE_BUFFER);
87     }
88   }
89
90   if(flush)
91   {
92     Flush();
93   }
94
95   mMappedPointer = nullptr;
96 }
97
98 void Memory3::Flush()
99 {
100   // TODO:
101 }
102
103 } // namespace Dali::Graphics::GLES