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Diffstat (limited to 'src/gpu/GrGpuGL.cpp')
-rw-r--r--src/gpu/GrGpuGL.cpp163
1 files changed, 102 insertions, 61 deletions
diff --git a/src/gpu/GrGpuGL.cpp b/src/gpu/GrGpuGL.cpp
index 86a95a973c..facfac914a 100644
--- a/src/gpu/GrGpuGL.cpp
+++ b/src/gpu/GrGpuGL.cpp
@@ -523,10 +523,10 @@ void GrGpuGL::onResetContext() {
}
GrTexture* GrGpuGL::onCreatePlatformTexture(const GrPlatformTextureDesc& desc) {
- GrGLenum internalFormat; // we don't need this value
+ GrGLenum dontCare;
GrGLTexture::Desc glTexDesc;
- if (!this->canBeTexture(desc.fConfig, &internalFormat,
- &glTexDesc.fUploadFormat, &glTexDesc.fUploadType)) {
+ if (!this->canBeTexture(desc.fConfig, &glTexDesc.fInternalFormat,
+ &dontCare, &dontCare)) {
return NULL;
}
@@ -639,9 +639,8 @@ GrResource* GrGpuGL::onCreatePlatformSurface(const GrPlatformSurfaceDesc& desc)
if (isTexture) {
GrGLTexture::Desc texDesc;
GrGLenum dontCare;
- if (!canBeTexture(desc.fConfig, &dontCare,
- &texDesc.fUploadFormat,
- &texDesc.fUploadType)) {
+ if (!canBeTexture(desc.fConfig, &texDesc.fInternalFormat,
+ &dontCare, &dontCare)) {
return NULL;
}
texDesc.fWidth = desc.fWidth;
@@ -675,44 +674,82 @@ GrResource* GrGpuGL::onCreatePlatformSurface(const GrPlatformSurfaceDesc& desc)
////////////////////////////////////////////////////////////////////////////////
-void GrGpuGL::allocateAndUploadTexData(const GrGLTexture::Desc& desc,
- GrGLenum internalFormat,
- const void* data,
- size_t rowBytes) {
- // we assume the texture is bound
+void GrGpuGL::onWriteTexturePixels(GrTexture* texture,
+ int left, int top, int width, int height,
+ GrPixelConfig config, const void* buffer,
+ size_t rowBytes) {
+ GrGLTexture* glTex = static_cast<GrGLTexture*>(texture);
- size_t bpp = GrBytesPerPixel(desc.fConfig);
- size_t trimRowBytes = desc.fWidth * bpp;
+ this->setSpareTextureUnit();
+ GL_CALL(BindTexture(GR_GL_TEXTURE_2D, glTex->textureID()));
+ GrGLTexture::Desc desc;
+ desc.fConfig = glTex->config();
+ desc.fWidth = glTex->width();
+ desc.fHeight = glTex->height();
+ desc.fOrientation = glTex->orientation();
+ desc.fTextureID = glTex->textureID();
+ desc.fInternalFormat = glTex->internalFormat();
+
+ this->uploadTexData(desc, left, top, width, height, config, buffer, rowBytes);
+}
- if (!rowBytes) {
- rowBytes = trimRowBytes;
+void GrGpuGL::uploadTexData(const GrGLTexture::Desc& desc,
+ int left, int top, int width, int height,
+ GrPixelConfig dataConfig,
+ const void* data,
+ size_t rowBytes) {
+ GrIRect bounds = GrIRect::MakeWH(desc.fWidth, desc.fHeight);
+ GrIRect subrect = GrIRect::MakeXYWH(left, top, width, height);
+ if (!bounds.contains(subrect)) {
+ return;
}
+ // ES2 glCompressedTexSubImage2D doesn't support any formats
+ // (at least without extensions)
+ GrAssert(desc.fInternalFormat != GR_GL_PALETTE8_RGBA8 ||
+ bounds == subrect);
+
// in case we need a temporary, trimmed copy of the src pixels
SkAutoSMalloc<128 * 128> tempStorage;
+ GrGLenum dontCare;
+ GrGLenum externalFormat;
+ GrGLenum externalType;
+ if (!this->canBeTexture(dataConfig, &dontCare,
+ &externalFormat, &externalType)) {
+ return;
+ }
+
+ size_t bpp = GrBytesPerPixel(dataConfig);
+ size_t trimRowBytes = width * bpp;
+ if (!rowBytes) {
+ rowBytes = trimRowBytes;
+ }
/*
- * check whether to allocate a temporary buffer for flipping y or
- * because our data has extra bytes past each row. If so, we need
- * to trim those off here, since GL ES doesn't let us specify
- * GL_UNPACK_ROW_LENGTH.
+ * check whether to allocate a temporary buffer for flipping y or
+ * because our srcData has extra bytes past each row. If so, we need
+ * to trim those off here, since GL ES may not let us specify
+ * GL_UNPACK_ROW_LENGTH.
*/
+ bool restoreGLRowLength = false;
bool flipY = GrGLTexture::kBottomUp_Orientation == desc.fOrientation;
if (this->glCaps().fUnpackRowLengthSupport && !flipY) {
- if (data && rowBytes != trimRowBytes) {
+ // can't use this for flipping, only non-neg values allowed. :(
+ if (rowBytes != trimRowBytes) {
GrGLint rowLength = static_cast<GrGLint>(rowBytes / bpp);
GL_CALL(PixelStorei(GR_GL_UNPACK_ROW_LENGTH, rowLength));
+ restoreGLRowLength = true;
}
} else {
- if (data && (trimRowBytes != rowBytes || flipY)) {
+ if (trimRowBytes != rowBytes || flipY) {
// copy the data into our new storage, skipping the trailing bytes
- size_t trimSize = desc.fHeight * trimRowBytes;
+ size_t trimSize = height * trimRowBytes;
const char* src = (const char*)data;
if (flipY) {
- src += (desc.fHeight - 1) * rowBytes;
+ src += (height - 1) * rowBytes;
}
char* dst = (char*)tempStorage.reset(trimSize);
- for (int y = 0; y < desc.fHeight; y++) {
+ for (int y = 0; y < height; y++) {
memcpy(dst, src, trimRowBytes);
if (flipY) {
src -= rowBytes;
@@ -721,31 +758,27 @@ void GrGpuGL::allocateAndUploadTexData(const GrGLTexture::Desc& desc,
}
dst += trimRowBytes;
}
- // now point data to our trimmed version
+ // now point dat to our copied version
data = tempStorage.get();
- rowBytes = trimRowBytes;
}
}
GL_CALL(PixelStorei(GR_GL_UNPACK_ALIGNMENT, static_cast<GrGLint>(bpp)));
- if (kIndex_8_GrPixelConfig == desc.fConfig &&
- this->getCaps().f8BitPaletteSupport) {
- // ES only supports CompressedTexImage2D, not CompressedTexSubimage2D
- GrGLsizei imageSize = desc.fWidth * desc.fHeight +
- kGrColorTableSize;
- GL_CALL(CompressedTexImage2D(GR_GL_TEXTURE_2D, 0, desc.fUploadFormat,
- desc.fWidth, desc.fHeight,
- 0, imageSize, data));
- if (this->glCaps().fUnpackRowLengthSupport) {
- GL_CALL(PixelStorei(GR_GL_UNPACK_ROW_LENGTH, 0));
- }
+ if (bounds == subrect) {
+ GL_CALL(TexImage2D(GR_GL_TEXTURE_2D, 0, desc.fInternalFormat,
+ desc.fWidth, desc.fHeight, 0,
+ externalFormat, externalType, data));
} else {
- GL_CALL(TexImage2D(GR_GL_TEXTURE_2D, 0, internalFormat,
- desc.fWidth, desc.fHeight, 0,
- desc.fUploadFormat, desc.fUploadType, data));
- if (this->glCaps().fUnpackRowLengthSupport) {
- GL_CALL(PixelStorei(GR_GL_UNPACK_ROW_LENGTH, 0));
+ if (flipY) {
+ top = desc.fHeight - (top + height);
}
+ GL_CALL(TexSubImage2D(GR_GL_TEXTURE_2D, 0, left, top, width, height,
+ externalFormat, externalType, data));
+ }
+
+ if (restoreGLRowLength) {
+ GrAssert(this->glCaps().fUnpackRowLengthSupport);
+ GL_CALL(PixelStorei(GR_GL_UNPACK_ROW_LENGTH, 0));
}
}
@@ -856,7 +889,8 @@ GrTexture* GrGpuGL::onCreateTexture(const GrTextureDesc& desc,
GrGLTexture::Desc glTexDesc;
GrGLRenderTarget::Desc glRTDesc;
- GrGLenum internalFormat;
+ GrGLenum externalFormat;
+ GrGLenum externalType;
glTexDesc.fWidth = desc.fWidth;
glTexDesc.fHeight = desc.fHeight;
@@ -871,9 +905,9 @@ GrTexture* GrGpuGL::onCreateTexture(const GrTextureDesc& desc,
bool renderTarget = 0 != (desc.fFlags & kRenderTarget_GrTextureFlagBit);
if (!canBeTexture(desc.fConfig,
- &internalFormat,
- &glTexDesc.fUploadFormat,
- &glTexDesc.fUploadType)) {
+ &glTexDesc.fInternalFormat,
+ &externalFormat,
+ &externalType)) {
return return_null_texture();
}
@@ -928,7 +962,14 @@ GrTexture* GrGpuGL::onCreateTexture(const GrTextureDesc& desc,
GL_CALL(TexParameteri(GR_GL_TEXTURE_2D,
GR_GL_TEXTURE_WRAP_T,
initialTexParams.fWrapT));
- this->allocateAndUploadTexData(glTexDesc, internalFormat,srcData, rowBytes);
+ if (NULL == srcData) {
+ GL_CALL(TexImage2D(GR_GL_TEXTURE_2D, 0, glTexDesc.fInternalFormat,
+ glTexDesc.fWidth, glTexDesc.fHeight, 0,
+ externalFormat, externalType, NULL));
+ } else {
+ this->uploadTexData(glTexDesc, 0, 0, glTexDesc.fWidth, glTexDesc.fHeight,
+ desc.fConfig, srcData, rowBytes);
+ }
GrGLTexture* tex;
if (renderTarget) {
@@ -2075,51 +2116,51 @@ void GrGpuGL::notifyTextureDelete(GrGLTexture* texture) {
bool GrGpuGL::canBeTexture(GrPixelConfig config,
GrGLenum* internalFormat,
- GrGLenum* format,
- GrGLenum* type) {
+ GrGLenum* externalFormat,
+ GrGLenum* externalType) {
switch (config) {
case kRGBA_8888_PM_GrPixelConfig:
case kRGBA_8888_UPM_GrPixelConfig:
- *format = GR_GL_RGBA;
+ *externalFormat = GR_GL_RGBA;
*internalFormat = GR_GL_RGBA;
- *type = GR_GL_UNSIGNED_BYTE;
+ *externalType = GR_GL_UNSIGNED_BYTE;
break;
case kBGRA_8888_PM_GrPixelConfig:
case kBGRA_8888_UPM_GrPixelConfig:
if (!fGLCaps.fBGRAFormatSupport) {
return false;
}
- *format = GR_GL_BGRA;
+ *externalFormat = GR_GL_BGRA;
if (fGLCaps.fBGRAIsInternalFormat) {
*internalFormat = GR_GL_BGRA;
} else {
*internalFormat = GR_GL_RGBA;
}
- *type = GR_GL_UNSIGNED_BYTE;
+ *externalType = GR_GL_UNSIGNED_BYTE;
break;
case kRGB_565_GrPixelConfig:
- *format = GR_GL_RGB;
+ *externalFormat = GR_GL_RGB;
*internalFormat = GR_GL_RGB;
- *type = GR_GL_UNSIGNED_SHORT_5_6_5;
+ *externalType = GR_GL_UNSIGNED_SHORT_5_6_5;
break;
case kRGBA_4444_GrPixelConfig:
- *format = GR_GL_RGBA;
+ *externalFormat = GR_GL_RGBA;
*internalFormat = GR_GL_RGBA;
- *type = GR_GL_UNSIGNED_SHORT_4_4_4_4;
+ *externalType = GR_GL_UNSIGNED_SHORT_4_4_4_4;
break;
case kIndex_8_GrPixelConfig:
if (this->getCaps().f8BitPaletteSupport) {
- *format = GR_GL_PALETTE8_RGBA8;
+ *externalFormat = GR_GL_PALETTE8_RGBA8;
*internalFormat = GR_GL_PALETTE8_RGBA8;
- *type = GR_GL_UNSIGNED_BYTE; // unused I think
+ *externalType = GR_GL_UNSIGNED_BYTE; // unused I think
} else {
return false;
}
break;
case kAlpha_8_GrPixelConfig:
- *format = GR_GL_ALPHA;
+ *externalFormat = GR_GL_ALPHA;
*internalFormat = GR_GL_ALPHA;
- *type = GR_GL_UNSIGNED_BYTE;
+ *externalType = GR_GL_UNSIGNED_BYTE;
break;
default:
return false;
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-03 05:46:30 +0000