2 * Copyright (c) 2021 Samsung Electronics Co., Ltd.
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
19 #include "gles-graphics-texture.h"
22 #include <dali/integration-api/debug.h>
23 #include <dali/integration-api/gl-abstraction.h>
24 #include <dali/integration-api/gl-defines.h>
28 #include "egl-graphics-controller.h"
29 #include "gles-graphics-sampler.h"
30 #include "gles-graphics-types.h"
34 // These match the GL specification
35 //const int32_t GL_MINIFY_DEFAULT = GL_NEAREST_MIPMAP_LINEAR;
36 //const int32_t GL_MAGNIFY_DEFAULT = GL_LINEAR;
37 const int32_t GL_WRAP_DEFAULT = GL_CLAMP_TO_EDGE;
39 // These are the Dali defaults
40 const int32_t DALI_MINIFY_DEFAULT = GL_LINEAR;
41 const int32_t DALI_MAGNIFY_DEFAULT = GL_LINEAR;
44 namespace Dali::Graphics::GLES
46 struct ColorConversion
50 std::vector<uint8_t> (*pConversionFunc)(const void*, uint32_t, uint32_t, uint32_t, uint32_t);
51 void (*pConversionWriteFunc)(const void*, uint32_t, uint32_t, uint32_t, uint32_t, void*);
54 inline void WriteRGB32ToRGBA32(const void* pData, uint32_t sizeInBytes, uint32_t width, uint32_t height, uint32_t rowStride, void* pOutput)
56 auto inData = reinterpret_cast<const uint8_t*>(pData);
57 auto outData = reinterpret_cast<uint8_t*>(pOutput);
59 for(auto i = 0u; i < sizeInBytes; i += 3)
61 outData[outIdx] = inData[i];
62 outData[outIdx + 1] = inData[i + 1];
63 outData[outIdx + 2] = inData[i + 2];
64 outData[outIdx + 3] = 0xff;
70 * Converts RGB to RGBA
72 inline std::vector<uint8_t> ConvertRGB32ToRGBA32(const void* pData, uint32_t sizeInBytes, uint32_t width, uint32_t height, uint32_t rowStride)
74 std::vector<uint8_t> rgbaBuffer{};
75 rgbaBuffer.resize(width * height * 4);
76 WriteRGB32ToRGBA32(pData, sizeInBytes, width, height, rowStride, &rgbaBuffer[0]);
81 * Format conversion table
83 static const std::vector<ColorConversion> COLOR_CONVERSION_TABLE = {
84 {Format::R8G8B8_UNORM, Format::R8G8B8A8_UNORM, ConvertRGB32ToRGBA32, WriteRGB32ToRGBA32}};
89 Texture::Texture(const Graphics::TextureCreateInfo& createInfo, Graphics::EglGraphicsController& controller)
90 : TextureResource(createInfo, controller)
92 // If there is any data, move it into staging buffer
93 if(mCreateInfo.data && mCreateInfo.dataSize)
95 mStagingBuffer.resize(size_t(mCreateInfo.dataSize));
96 std::copy(reinterpret_cast<char*>(mCreateInfo.data),
97 reinterpret_cast<char*>(mCreateInfo.data) + mCreateInfo.dataSize,
98 mStagingBuffer.begin());
101 // Add texture to the Resource queue
102 mController.AddTexture(*this);
105 bool Texture::InitializeResource()
107 if(mCreateInfo.nativeImagePtr)
109 return InitializeNativeImage();
111 return InitializeTexture();
114 bool Texture::InitializeNativeImage()
116 auto context = mController.GetCurrentContext();
117 auto gl = mController.GetGL();
122 // Do nothing during shutdown
126 NativeImageInterfacePtr nativeImage = mCreateInfo.nativeImagePtr;
127 bool created = nativeImage->CreateResource();
128 mGlTarget = nativeImage->GetTextureTarget();
131 gl->GenTextures(1, &texture);
132 context->BindTexture(mGlTarget, GetTextureTypeId(), texture);
134 gl->PixelStorei(GL_UNPACK_ALIGNMENT, 1); // We always use tightly packed data
136 // Apply default sampling parameters
137 gl->TexParameteri(mGlTarget, GL_TEXTURE_MIN_FILTER, DALI_MINIFY_DEFAULT);
138 gl->TexParameteri(mGlTarget, GL_TEXTURE_MAG_FILTER, DALI_MAGNIFY_DEFAULT);
139 gl->TexParameteri(mGlTarget, GL_TEXTURE_WRAP_S, GL_WRAP_DEFAULT);
140 gl->TexParameteri(mGlTarget, GL_TEXTURE_WRAP_T, GL_WRAP_DEFAULT);
142 // platform specific implementation decides on what GL extension to use
143 if(nativeImage->TargetTexture() != 0u)
145 gl->DeleteTextures(1, &texture);
146 nativeImage->DestroyResource();
152 mTextureId = texture;
157 DALI_LOG_ERROR("Native Image: InitializeNativeImage, CreateResource() failed\n");
160 return created; // WARNING! May be false! Needs handling! (Well, initialized on bind)
163 bool Texture::InitializeTexture()
165 auto context = mController.GetCurrentContext();
166 auto gl = mController.GetGL();
169 // Do nothing during shutdown
175 mGlTarget = GLTextureTarget(mCreateInfo.textureType).target;
176 mIsCompressed = Graphics::GLES::FormatCompression(mCreateInfo.format).compressed;
178 switch(mCreateInfo.textureType)
181 case Graphics::TextureType::TEXTURE_2D:
183 Graphics::GLES::GLTextureFormatType format(mCreateInfo.format);
185 // TODO: find better condition, with this test the L8 doesn't work
186 if(1) //format.format && format.type)
189 gl->GenTextures(1, &texture);
190 context->BindTexture(GL_TEXTURE_2D, GetTextureTypeId(), texture);
192 // Allocate memory for the texture
195 gl->TexImage2D(GL_TEXTURE_2D,
197 format.internalFormat,
198 mCreateInfo.size.width,
199 mCreateInfo.size.height,
203 (mCreateInfo.data ? mStagingBuffer.data() : nullptr));
207 gl->CompressedTexImage2D(GL_TEXTURE_2D,
209 format.internalFormat,
210 mCreateInfo.size.width,
211 mCreateInfo.size.height,
213 mCreateInfo.dataSize,
214 (mCreateInfo.data ? mStagingBuffer.data() : nullptr));
217 // Clear staging buffer if there was any
218 mStagingBuffer.clear();
219 mTextureId = texture;
221 // Default texture filtering (to be set later via command buffer binding)
222 gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, Graphics::GLES::GLSamplerFilterAndMipMapMode(Graphics::SamplerFilter::LINEAR, SamplerMipmapMode::NONE));
223 gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, Graphics::GLES::GLSamplerFilterAndMipMapMode(Graphics::SamplerFilter::LINEAR, SamplerMipmapMode::NONE));
224 gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_WRAP_DEFAULT);
225 gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_WRAP_DEFAULT);
230 case Graphics::TextureType::TEXTURE_CUBEMAP:
232 Graphics::GLES::GLTextureFormatType format(mCreateInfo.format);
234 if(format.format && format.type)
237 gl->GenTextures(1, &texture);
238 context->BindTexture(GL_TEXTURE_CUBE_MAP, GetTextureTypeId(), texture);
239 gl->PixelStorei(GL_UNPACK_ALIGNMENT, 1); // We always use tightly packed data
241 gl->TexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MIN_FILTER, Graphics::GLES::GLSamplerFilterAndMipMapMode(Graphics::SamplerFilter::LINEAR, SamplerMipmapMode::NONE));
242 gl->TexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAG_FILTER, Graphics::GLES::GLSamplerFilterAndMipMapMode(Graphics::SamplerFilter::LINEAR, SamplerMipmapMode::NONE));
243 gl->TexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_S, GL_WRAP_DEFAULT);
244 gl->TexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_T, GL_WRAP_DEFAULT);
246 // Allocate memory for the texture
247 for(uint32_t i = 0; i < 6; ++i)
251 gl->TexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + i,
253 format.internalFormat,
254 mCreateInfo.size.width,
255 mCreateInfo.size.height,
259 (mCreateInfo.data ? mStagingBuffer.data() : nullptr));
263 gl->CompressedTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + i,
265 format.internalFormat,
266 mCreateInfo.size.width,
267 mCreateInfo.size.height,
269 mCreateInfo.dataSize,
270 (mCreateInfo.data ? mStagingBuffer.data() : nullptr));
274 // Clear staging buffer if there was any
275 mStagingBuffer.clear();
277 mTextureId = texture;
279 gl->TexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_R, GL_WRAP_DEFAULT);
291 void Texture::DestroyResource()
293 auto gl = mController.GetGL();
299 // This is a proper destructor
302 gl->DeleteTextures(1, &mTextureId);
304 if(mCreateInfo.nativeImagePtr)
306 mCreateInfo.nativeImagePtr->DestroyResource();
310 void Texture::DiscardResource()
312 mController.DiscardResource(this);
315 void Texture::Bind(const TextureBinding& binding) const
317 auto context = mController.GetCurrentContext();
318 auto gl = mController.GetGL();
321 // Do nothing during shutdown
325 context->ActiveTexture(binding.binding);
326 context->BindTexture(mGlTarget, GetTextureTypeId(), mTextureId);
328 // For GLES2 if there is a sampler set in the binding
331 const auto& samplerCreateInfo = static_cast<const GLES::Sampler*>(binding.sampler)->GetCreateInfo();
333 auto mipMapMode = samplerCreateInfo.mipMapMode;
335 gl->TexParameteri(mGlTarget, GL_TEXTURE_MIN_FILTER, GLSamplerFilterAndMipMapMode(samplerCreateInfo.minFilter, mipMapMode).glFilter);
336 gl->TexParameteri(mGlTarget, GL_TEXTURE_MAG_FILTER, GLSamplerFilter(samplerCreateInfo.magFilter).glFilter);
337 gl->TexParameteri(mGlTarget, GL_TEXTURE_WRAP_S, GLAddressMode(samplerCreateInfo.addressModeU).texParameter);
338 gl->TexParameteri(mGlTarget, GL_TEXTURE_WRAP_T, GLAddressMode(samplerCreateInfo.addressModeV).texParameter);
339 if(mGlTarget == GL_TEXTURE_CUBE_MAP)
341 gl->TexParameteri(mGlTarget, GL_TEXTURE_WRAP_R, GLAddressMode(samplerCreateInfo.addressModeW).texParameter);
346 gl->TexParameteri(mGlTarget, GL_TEXTURE_MIN_FILTER, DALI_MINIFY_DEFAULT);
347 gl->TexParameteri(mGlTarget, GL_TEXTURE_MAG_FILTER, DALI_MAGNIFY_DEFAULT);
348 gl->TexParameteri(mGlTarget, GL_TEXTURE_WRAP_S, GL_WRAP_DEFAULT);
349 gl->TexParameteri(mGlTarget, GL_TEXTURE_WRAP_T, GL_WRAP_DEFAULT);
350 if(mGlTarget == GL_TEXTURE_CUBE_MAP)
352 gl->TexParameteri(mGlTarget, GL_TEXTURE_WRAP_R, GL_WRAP_DEFAULT);
358 gl->TexParameteri(mGlTarget, GL_TEXTURE_MAX_LEVEL, mMaxMipMapLevel);
362 void Texture::Prepare()
364 NativeImageInterfacePtr nativeImage = mCreateInfo.nativeImagePtr;
367 if(nativeImage->SourceChanged())
370 uint32_t width = mCreateInfo.nativeImagePtr->GetWidth();
371 uint32_t height = mCreateInfo.nativeImagePtr->GetHeight();
372 mCreateInfo.SetSize({width, height}); // Size may change
375 nativeImage->PrepareTexture();
380 * This function tests whether format is supported by the driver. If possible it applies
381 * format conversion to suitable supported pixel format.
383 bool Texture::TryConvertPixelData(const void* pData, Graphics::Format srcFormat, Graphics::Format destFormat, uint32_t sizeInBytes, uint32_t width, uint32_t height, std::vector<uint8_t>& outputBuffer)
385 // No need to convert
386 if(srcFormat == destFormat)
391 auto it = std::find_if(COLOR_CONVERSION_TABLE.begin(), COLOR_CONVERSION_TABLE.end(), [&](auto& item) {
392 return item.srcFormat == srcFormat && item.destFormat == destFormat;
395 // No suitable format, return empty array
396 if(it == COLOR_CONVERSION_TABLE.end())
400 auto begin = reinterpret_cast<const uint8_t*>(pData);
402 outputBuffer = std::move(it->pConversionFunc(begin, sizeInBytes, width, height, 0u));
403 return !outputBuffer.empty();
406 } // namespace Dali::Graphics::GLES