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Unified Diff: ui/gl/gl_image_memory.cc

Issue 916083002: Add support for compressed GPU memory buffers. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Fix ozone Created 5 years, 10 months ago
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Index: ui/gl/gl_image_memory.cc
diff --git a/ui/gl/gl_image_memory.cc b/ui/gl/gl_image_memory.cc
index e92cc1f34ed6438f90f6ee64968eedf6660a8120..6b9a51967a0f2e42d41dc192585a4160236ef923 100644
--- a/ui/gl/gl_image_memory.cc
+++ b/ui/gl/gl_image_memory.cc
@@ -28,6 +28,11 @@ bool ValidInternalFormat(unsigned internalformat) {
bool ValidFormat(gfx::GpuMemoryBuffer::Format format) {
switch (format) {
+ case gfx::GpuMemoryBuffer::ATC:
+ case gfx::GpuMemoryBuffer::ATCIA:
+ case gfx::GpuMemoryBuffer::DXT1:
+ case gfx::GpuMemoryBuffer::DXT5:
+ case gfx::GpuMemoryBuffer::ETC1:
case gfx::GpuMemoryBuffer::RGBA_8888:
case gfx::GpuMemoryBuffer::BGRA_8888:
return true;
@@ -39,8 +44,36 @@ bool ValidFormat(gfx::GpuMemoryBuffer::Format format) {
return false;
}
+bool IsCompressedFormat(gfx::GpuMemoryBuffer::Format format) {
+ switch (format) {
+ case gfx::GpuMemoryBuffer::ATC:
+ case gfx::GpuMemoryBuffer::ATCIA:
+ case gfx::GpuMemoryBuffer::DXT1:
+ case gfx::GpuMemoryBuffer::DXT5:
+ case gfx::GpuMemoryBuffer::ETC1:
+ return true;
+ case gfx::GpuMemoryBuffer::RGBA_8888:
+ case gfx::GpuMemoryBuffer::BGRA_8888:
+ case gfx::GpuMemoryBuffer::RGBX_8888:
+ return false;
+ }
+
+ NOTREACHED();
+ return false;
+}
+
GLenum TextureFormat(gfx::GpuMemoryBuffer::Format format) {
switch (format) {
+ case gfx::GpuMemoryBuffer::ATC:
+ return GL_ATC_RGB_AMD;
+ case gfx::GpuMemoryBuffer::ATCIA:
+ return GL_ATC_RGBA_INTERPOLATED_ALPHA_AMD;
+ case gfx::GpuMemoryBuffer::DXT1:
+ return GL_COMPRESSED_RGB_S3TC_DXT1_EXT;
+ case gfx::GpuMemoryBuffer::DXT5:
+ return GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
+ case gfx::GpuMemoryBuffer::ETC1:
+ return GL_ETC1_RGB8_OES;
case gfx::GpuMemoryBuffer::RGBA_8888:
return GL_RGBA;
case gfx::GpuMemoryBuffer::BGRA_8888:
@@ -63,6 +96,11 @@ GLenum DataType(gfx::GpuMemoryBuffer::Format format) {
case gfx::GpuMemoryBuffer::RGBA_8888:
case gfx::GpuMemoryBuffer::BGRA_8888:
return GL_UNSIGNED_BYTE;
+ case gfx::GpuMemoryBuffer::ATC:
+ case gfx::GpuMemoryBuffer::ATCIA:
+ case gfx::GpuMemoryBuffer::DXT1:
+ case gfx::GpuMemoryBuffer::DXT5:
+ case gfx::GpuMemoryBuffer::ETC1:
case gfx::GpuMemoryBuffer::RGBX_8888:
NOTREACHED();
return 0;
@@ -72,6 +110,15 @@ GLenum DataType(gfx::GpuMemoryBuffer::Format format) {
return 0;
}
+GLsizei SizeInBytes(const gfx::Size& size,
+ gfx::GpuMemoryBuffer::Format format) {
+ size_t stride_in_bytes = 0;
+ bool valid_stride = GLImageMemory::StrideInBytes(
+ size.width(), format, &stride_in_bytes);
+ DCHECK(valid_stride);
+ return static_cast<GLsizei>(stride_in_bytes * size.height());
+}
+
} // namespace
GLImageMemory::GLImageMemory(const gfx::Size& size, unsigned internalformat)
@@ -105,6 +152,20 @@ bool GLImageMemory::StrideInBytes(size_t width,
size_t* stride_in_bytes) {
base::CheckedNumeric<size_t> s = width;
switch (format) {
+ case gfx::GpuMemoryBuffer::ATCIA:
+ case gfx::GpuMemoryBuffer::DXT5:
+ *stride_in_bytes = width;
+ return true;
+ case gfx::GpuMemoryBuffer::ATC:
+ case gfx::GpuMemoryBuffer::DXT1:
+ case gfx::GpuMemoryBuffer::ETC1:
+ DCHECK_EQ(width % 2, 0U);
+ s /= 2;
+ if (!s.IsValid())
+ return false;
+
+ *stride_in_bytes = s.ValueOrDie();
+ return true;
case gfx::GpuMemoryBuffer::RGBA_8888:
case gfx::GpuMemoryBuffer::BGRA_8888:
s *= 4;
@@ -122,6 +183,30 @@ bool GLImageMemory::StrideInBytes(size_t width,
return false;
}
+// static
+bool GLImageMemory::ValidSize(const gfx::Size& size,
+ gfx::GpuMemoryBuffer::Format format) {
+ switch (format) {
+ case gfx::GpuMemoryBuffer::ATC:
+ case gfx::GpuMemoryBuffer::ATCIA:
+ case gfx::GpuMemoryBuffer::DXT1:
+ case gfx::GpuMemoryBuffer::DXT5:
+ case gfx::GpuMemoryBuffer::ETC1:
+ // Compressed images must have a width and height that's evenly divisible
+ // by the block size.
+ return size.width() % 4 == 0 && size.height() % 4 == 0;
+ case gfx::GpuMemoryBuffer::RGBA_8888:
+ case gfx::GpuMemoryBuffer::BGRA_8888:
+ return true;
+ case gfx::GpuMemoryBuffer::RGBX_8888:
+ NOTREACHED();
+ return false;
+ }
+
+ NOTREACHED();
+ return false;
+}
+
bool GLImageMemory::Initialize(const unsigned char* memory,
gfx::GpuMemoryBuffer::Format format) {
if (!ValidInternalFormat(internalformat_)) {
@@ -187,11 +272,21 @@ bool GLImageMemory::CopyTexImage(unsigned target) {
return false;
DCHECK(memory_);
- glTexSubImage2D(target, 0, // level
- 0, // x
- 0, // y
- size_.width(), size_.height(), DataFormat(format_),
- DataType(format_), memory_);
+ if (IsCompressedFormat(format_)) {
+ glCompressedTexSubImage2D(target,
+ 0, // level
+ 0, // x-offset
+ 0, // y-offset
+ size_.width(), size_.height(),
+ DataFormat(format_), SizeInBytes(size_, format_),
+ memory_);
+ } else {
+ glTexSubImage2D(target, 0, // level
+ 0, // x
+ 0, // y
+ size_.width(), size_.height(), DataFormat(format_),
+ DataType(format_), memory_);
+ }
return true;
}
@@ -240,15 +335,24 @@ void GLImageMemory::DoBindTexImage(unsigned target) {
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
- glTexImage2D(GL_TEXTURE_2D,
- 0, // mip level
- TextureFormat(format_),
- size_.width(),
- size_.height(),
- 0, // border
- DataFormat(format_),
- DataType(format_),
- memory_);
+ if (IsCompressedFormat(format_)) {
+ glCompressedTexImage2D(GL_TEXTURE_2D,
+ 0, // mip level
+ TextureFormat(format_), size_.width(),
+ size_.height(),
+ 0, // border
+ SizeInBytes(size_, format_), memory_);
+ } else {
+ glTexImage2D(GL_TEXTURE_2D,
+ 0, // mip level
+ TextureFormat(format_),
+ size_.width(),
+ size_.height(),
+ 0, // border
+ DataFormat(format_),
+ DataType(format_),
+ memory_);
+ }
}
EGLint attrs[] = {EGL_IMAGE_PRESERVED_KHR, EGL_TRUE, EGL_NONE};
@@ -265,15 +369,26 @@ void GLImageMemory::DoBindTexImage(unsigned target) {
} else {
ScopedTextureBinder texture_binder(GL_TEXTURE_2D, egl_texture_id_);
- glTexSubImage2D(GL_TEXTURE_2D,
- 0, // mip level
- 0, // x-offset
- 0, // y-offset
- size_.width(),
- size_.height(),
- DataFormat(format_),
- DataType(format_),
- memory_);
+ if (IsCompressedFormat(format_)) {
+ glCompressedTexSubImage2D(GL_TEXTURE_2D,
+ 0, // mip level
+ 0, // x-offset
+ 0, // y-offset
+ size_.width(), size_.height(),
+ DataFormat(format_),
+ SizeInBytes(size_, format_),
+ memory_);
+ } else {
+ glTexSubImage2D(GL_TEXTURE_2D,
+ 0, // mip level
+ 0, // x-offset
+ 0, // y-offset
+ size_.width(),
+ size_.height(),
+ DataFormat(format_),
+ DataType(format_),
+ memory_);
+ }
}
glEGLImageTargetTexture2DOES(target, egl_image_);
@@ -283,15 +398,24 @@ void GLImageMemory::DoBindTexImage(unsigned target) {
#endif
DCHECK_NE(static_cast<GLenum>(GL_TEXTURE_EXTERNAL_OES), target);
- glTexImage2D(target,
- 0, // mip level
- TextureFormat(format_),
- size_.width(),
- size_.height(),
- 0, // border
- DataFormat(format_),
- DataType(format_),
- memory_);
+ if (IsCompressedFormat(format_)) {
+ glCompressedTexImage2D(target,
+ 0, // mip level
+ TextureFormat(format_), size_.width(),
+ size_.height(),
+ 0, // border
+ SizeInBytes(size_, format_), memory_);
+ } else {
+ glTexImage2D(target,
+ 0, // mip level
+ TextureFormat(format_),
+ size_.width(),
+ size_.height(),
+ 0, // border
+ DataFormat(format_),
+ DataType(format_),
+ memory_);
+ }
}
} // namespace gfx
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