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| author | Geoff Lang <geofflang@chromium.org> | 2014-09-19 13:13:40 -0400 |
|---|---|---|
| committer | Geoff Lang <geofflang@chromium.org> | 2014-09-22 17:11:59 +0000 |
| commit | df647a2a354d5dc9affdd6a982fccb6b95d361b0 (patch) | |
| tree | 5cf570e5e6a527a06cb1872195c192dec3f65a54 /src/libGLESv2/renderer/d3d | |
| parent | ee009b8ee5f35dc6cca44a30d4d6c9c65cfdb0a7 (diff) | |
| download | angle-df647a2a354d5dc9affdd6a982fccb6b95d361b0.tar.gz | |
Use a D24S8 format to back GL_DEPTH_COMPONENT32_OES in D3D9.
Looks like the D3D9 D32 format isn't available on most GPUs (and doesn't
exist in D3D11) so back GL_DEPTH_COMPONENT32_OES with D24S8 instead to
match D3D11.
BUG=angle:750
Change-Id: I0f7a124544c1c14ba21db20fbf6765d07e244966
Reviewed-on: https://chromium-review.googlesource.com/219080
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Shannon Woods <shannonwoods@chromium.org>
Tested-by: Geoff Lang <geofflang@chromium.org>
Diffstat (limited to 'src/libGLESv2/renderer/d3d')
| -rw-r--r-- | src/libGLESv2/renderer/d3d/d3d9/formatutils9.cpp | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/src/libGLESv2/renderer/d3d/d3d9/formatutils9.cpp b/src/libGLESv2/renderer/d3d/d3d9/formatutils9.cpp index b0d3868f..f3acaf79 100644 --- a/src/libGLESv2/renderer/d3d/d3d9/formatutils9.cpp +++ b/src/libGLESv2/renderer/d3d/d3d9/formatutils9.cpp @@ -222,8 +222,17 @@ static D3D9FormatMap BuildD3D9FormatMap() // | Internal format | Texture format | Render format | Load function | InsertD3D9FormatInfo(&map, GL_NONE, D3DFMT_NULL, D3DFMT_NULL, UnreachableLoad ); + // We choose to downsample the GL_DEPTH_COMPONENT32_OES format to a 24-bit format because D3DFMT_D32 is not widely + // supported. We're allowed to do this because: + // - The ES spec 2.0.25 sec 3.7.1 states that we're allowed to store texture formats with internal format + // resolutions of our own choosing. + // - OES_depth_texture states that downsampling of the depth formats is allowed. + // - ANGLE_depth_texture does not state minimum required resolutions of the depth texture formats it + // introduces. + // In ES3 however, there are minimum resolutions for the texture formats and this would not be allowed. + InsertD3D9FormatInfo(&map, GL_DEPTH_COMPONENT16, D3DFMT_INTZ, D3DFMT_D24S8, UnreachableLoad ); - InsertD3D9FormatInfo(&map, GL_DEPTH_COMPONENT32_OES, D3DFMT_INTZ, D3DFMT_D32, UnreachableLoad ); + InsertD3D9FormatInfo(&map, GL_DEPTH_COMPONENT32_OES, D3DFMT_INTZ, D3DFMT_D24X8, UnreachableLoad ); InsertD3D9FormatInfo(&map, GL_DEPTH24_STENCIL8_OES, D3DFMT_INTZ, D3DFMT_D24S8, UnreachableLoad ); InsertD3D9FormatInfo(&map, GL_STENCIL_INDEX8, D3DFMT_UNKNOWN, D3DFMT_D24S8, UnreachableLoad ); // TODO: What's the texture format? |