/**
* Given an OpenGL internalFormat value for a texture or surface, return
* the best matching PIPE_FORMAT_x, or PIPE_FORMAT_NONE if there's no match.
+ * This is called during glTexImage2D, for example.
+ *
+ * The bindings parameter typically has PIPE_BIND_SAMPLER_VIEW set, plus
+ * either PIPE_BINDING_RENDER_TARGET or PIPE_BINDING_DEPTH_STENCIL if
+ * we want render-to-texture ability.
+ *
+ * \param internalFormat the user value passed to glTexImage2D
* \param target one of PIPE_TEXTURE_x
- * \param tex_usage either PIPE_BIND_RENDER_TARGET
- * or PIPE_BIND_SAMPLER_VIEW
+ * \param bindings bitmask of PIPE_BIND_x flags.
*/
enum pipe_format
st_choose_format(struct pipe_screen *screen, GLenum internalFormat,
- enum pipe_texture_target target, unsigned tex_usage)
+ enum pipe_texture_target target, unsigned bindings)
{
- unsigned geom_flags = 0;
+ unsigned geom_flags = 0; /* we don't care about POT vs. NPOT here, yet */
switch (internalFormat) {
case 4:
case GL_RGBA:
- case GL_COMPRESSED_RGBA:
case GL_RGBA8:
case GL_RGB10_A2:
case GL_RGBA12:
- return default_rgba_format( screen, target, tex_usage, geom_flags );
+ return default_rgba_format( screen, target, bindings, geom_flags );
case 3:
case GL_RGB:
- case GL_COMPRESSED_RGB:
- return default_rgb_format( screen, target, tex_usage, geom_flags );
+ return default_rgb_format( screen, target, bindings, geom_flags );
case GL_RGBA16:
- return default_rgba_format( screen, target, tex_usage, geom_flags );
+ return default_rgba_format( screen, target, bindings, geom_flags );
case GL_RGBA4:
case GL_RGBA2:
- if (screen->is_format_supported( screen, PIPE_FORMAT_B4G4R4A4_UNORM, target, tex_usage, geom_flags ))
+ if (screen->is_format_supported( screen, PIPE_FORMAT_B4G4R4A4_UNORM,
+ target, bindings, geom_flags ))
return PIPE_FORMAT_B4G4R4A4_UNORM;
- return default_rgba_format( screen, target, tex_usage, geom_flags );
+ return default_rgba_format( screen, target, bindings, geom_flags );
case GL_RGB5_A1:
- if (screen->is_format_supported( screen, PIPE_FORMAT_B5G5R5A1_UNORM, target, tex_usage, geom_flags ))
+ if (screen->is_format_supported( screen, PIPE_FORMAT_B5G5R5A1_UNORM,
+ target, bindings, geom_flags ))
return PIPE_FORMAT_B5G5R5A1_UNORM;
- return default_rgba_format( screen, target, tex_usage, geom_flags );
+ return default_rgba_format( screen, target, bindings, geom_flags );
case GL_RGB8:
case GL_RGB10:
case GL_RGB12:
case GL_RGB16:
- return default_rgb_format( screen, target, tex_usage, geom_flags );
+ return default_rgb_format( screen, target, bindings, geom_flags );
case GL_RGB5:
case GL_RGB4:
case GL_R3_G3_B2:
- if (screen->is_format_supported( screen, PIPE_FORMAT_B5G6R5_UNORM, target, tex_usage, geom_flags ))
+ if (screen->is_format_supported( screen, PIPE_FORMAT_B5G6R5_UNORM,
+ target, bindings, geom_flags ))
return PIPE_FORMAT_B5G6R5_UNORM;
- if (screen->is_format_supported( screen, PIPE_FORMAT_B5G5R5A1_UNORM, target, tex_usage, geom_flags ))
+ if (screen->is_format_supported( screen, PIPE_FORMAT_B5G5R5A1_UNORM,
+ target, bindings, geom_flags ))
return PIPE_FORMAT_B5G5R5A1_UNORM;
- return default_rgba_format( screen, target, tex_usage, geom_flags );
+ return default_rgba_format( screen, target, bindings, geom_flags );
case GL_ALPHA:
case GL_ALPHA4:
case GL_ALPHA12:
case GL_ALPHA16:
case GL_COMPRESSED_ALPHA:
- if (screen->is_format_supported( screen, PIPE_FORMAT_A8_UNORM, target, tex_usage, geom_flags ))
+ if (screen->is_format_supported( screen, PIPE_FORMAT_A8_UNORM, target,
+ bindings, geom_flags ))
return PIPE_FORMAT_A8_UNORM;
- return default_rgba_format( screen, target, tex_usage, geom_flags );
+ return default_rgba_format( screen, target, bindings, geom_flags );
case 1:
case GL_LUMINANCE:
case GL_LUMINANCE12:
case GL_LUMINANCE16:
case GL_COMPRESSED_LUMINANCE:
- if (screen->is_format_supported( screen, PIPE_FORMAT_L8_UNORM, target, tex_usage, geom_flags ))
+ if (screen->is_format_supported( screen, PIPE_FORMAT_L8_UNORM, target,
+ bindings, geom_flags ))
return PIPE_FORMAT_L8_UNORM;
- return default_rgba_format( screen, target, tex_usage, geom_flags );
+ return default_rgba_format( screen, target, bindings, geom_flags );
case 2:
case GL_LUMINANCE_ALPHA:
case GL_LUMINANCE12_ALPHA12:
case GL_LUMINANCE16_ALPHA16:
case GL_COMPRESSED_LUMINANCE_ALPHA:
- if (screen->is_format_supported( screen, PIPE_FORMAT_L8A8_UNORM, target, tex_usage, geom_flags ))
+ if (screen->is_format_supported( screen, PIPE_FORMAT_L8A8_UNORM, target,
+ bindings, geom_flags ))
return PIPE_FORMAT_L8A8_UNORM;
- return default_rgba_format( screen, target, tex_usage, geom_flags );
+ return default_rgba_format( screen, target, bindings, geom_flags );
case GL_INTENSITY:
case GL_INTENSITY4:
case GL_INTENSITY12:
case GL_INTENSITY16:
case GL_COMPRESSED_INTENSITY:
- if (screen->is_format_supported( screen, PIPE_FORMAT_I8_UNORM, target, tex_usage, geom_flags ))
+ if (screen->is_format_supported( screen, PIPE_FORMAT_I8_UNORM, target,
+ bindings, geom_flags ))
return PIPE_FORMAT_I8_UNORM;
- return default_rgba_format( screen, target, tex_usage, geom_flags );
+ return default_rgba_format( screen, target, bindings, geom_flags );
case GL_YCBCR_MESA:
if (screen->is_format_supported(screen, PIPE_FORMAT_UYVY,
- target, tex_usage, geom_flags)) {
+ target, bindings, geom_flags)) {
return PIPE_FORMAT_UYVY;
}
if (screen->is_format_supported(screen, PIPE_FORMAT_YUYV,
- target, tex_usage, geom_flags)) {
+ target, bindings, geom_flags)) {
return PIPE_FORMAT_YUYV;
}
return PIPE_FORMAT_NONE;
+ case GL_COMPRESSED_RGB:
+ /* can only sample from compressed formats */
+ if (bindings & ~PIPE_BIND_SAMPLER_VIEW)
+ return PIPE_FORMAT_NONE;
+ else if (screen->is_format_supported(screen, PIPE_FORMAT_DXT1_RGB,
+ target, bindings, geom_flags))
+ return PIPE_FORMAT_DXT1_RGB;
+ else
+ return default_rgb_format(screen, target, bindings, geom_flags);
+
+ case GL_COMPRESSED_RGBA:
+ /* can only sample from compressed formats */
+ if (bindings & ~PIPE_BIND_SAMPLER_VIEW)
+ return PIPE_FORMAT_NONE;
+ else if (screen->is_format_supported(screen, PIPE_FORMAT_DXT3_RGBA,
+ target, bindings, geom_flags))
+ return PIPE_FORMAT_DXT3_RGBA;
+ else
+ return default_rgba_format(screen, target, bindings, geom_flags);
+
case GL_RGB_S3TC:
case GL_RGB4_S3TC:
case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
- return PIPE_FORMAT_DXT1_RGB;
+ if (screen->is_format_supported(screen, PIPE_FORMAT_DXT1_RGB,
+ target, bindings, geom_flags))
+ return PIPE_FORMAT_DXT1_RGB;
+ else
+ return PIPE_FORMAT_NONE;
case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
- return PIPE_FORMAT_DXT1_RGBA;
+ if (screen->is_format_supported(screen, PIPE_FORMAT_DXT1_RGBA,
+ target, bindings, geom_flags))
+ return PIPE_FORMAT_DXT1_RGBA;
+ else
+ return PIPE_FORMAT_NONE;
case GL_RGBA_S3TC:
case GL_RGBA4_S3TC:
case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
- return PIPE_FORMAT_DXT3_RGBA;
+ if (screen->is_format_supported(screen, PIPE_FORMAT_DXT3_RGBA,
+ target, bindings, geom_flags))
+ return PIPE_FORMAT_DXT3_RGBA;
+ else
+ return PIPE_FORMAT_NONE;
case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
- return PIPE_FORMAT_DXT5_RGBA;
+ if (screen->is_format_supported(screen, PIPE_FORMAT_DXT5_RGBA,
+ target, bindings, geom_flags))
+ return PIPE_FORMAT_DXT5_RGBA;
+ else
+ return PIPE_FORMAT_NONE;
#if 0
case GL_COMPRESSED_RGB_FXT1_3DFX:
#endif
case GL_DEPTH_COMPONENT16:
- if (screen->is_format_supported( screen, PIPE_FORMAT_Z16_UNORM, target, tex_usage, geom_flags ))
+ if (screen->is_format_supported(screen, PIPE_FORMAT_Z16_UNORM, target,
+ bindings, geom_flags))
return PIPE_FORMAT_Z16_UNORM;
/* fall-through */
case GL_DEPTH_COMPONENT24:
- if (screen->is_format_supported( screen, PIPE_FORMAT_Z24_UNORM_S8_USCALED, target, tex_usage, geom_flags ))
+ if (screen->is_format_supported(screen, PIPE_FORMAT_Z24_UNORM_S8_USCALED,
+ target, bindings, geom_flags))
return PIPE_FORMAT_Z24_UNORM_S8_USCALED;
- if (screen->is_format_supported( screen, PIPE_FORMAT_S8_USCALED_Z24_UNORM, target, tex_usage, geom_flags ))
+ if (screen->is_format_supported(screen, PIPE_FORMAT_S8_USCALED_Z24_UNORM,
+ target, bindings, geom_flags))
return PIPE_FORMAT_S8_USCALED_Z24_UNORM;
/* fall-through */
case GL_DEPTH_COMPONENT32:
- if (screen->is_format_supported( screen, PIPE_FORMAT_Z32_UNORM, target, tex_usage, geom_flags ))
+ if (screen->is_format_supported(screen, PIPE_FORMAT_Z32_UNORM,
+ target, bindings, geom_flags))
return PIPE_FORMAT_Z32_UNORM;
/* fall-through */
case GL_DEPTH_COMPONENT:
PIPE_FORMAT_S8_USCALED_Z24_UNORM
};
return find_supported_format(screen, formats, Elements(formats),
- target, tex_usage, geom_flags);
+ target, bindings, geom_flags);
}
case GL_STENCIL_INDEX:
PIPE_FORMAT_S8_USCALED_Z24_UNORM
};
return find_supported_format(screen, formats, Elements(formats),
- target, tex_usage, geom_flags);
+ target, bindings, geom_flags);
}
case GL_DEPTH_STENCIL_EXT:
PIPE_FORMAT_S8_USCALED_Z24_UNORM
};
return find_supported_format(screen, formats, Elements(formats),
- target, tex_usage, geom_flags);
+ target, bindings, geom_flags);
}
case GL_SRGB_EXT:
case GL_COMPRESSED_SRGB_ALPHA_EXT:
case GL_SRGB_ALPHA_EXT:
case GL_SRGB8_ALPHA8_EXT:
- return default_srgba_format( screen, target, tex_usage, geom_flags );
+ return default_srgba_format( screen, target, bindings, geom_flags );
case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
return PIPE_FORMAT_DXT1_SRGB;
case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
case GL_SLUMINANCE8_ALPHA8_EXT:
case GL_COMPRESSED_SLUMINANCE_EXT:
case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT:
- if (screen->is_format_supported( screen, PIPE_FORMAT_L8A8_SRGB, target, tex_usage, geom_flags ))
+ if (screen->is_format_supported(screen, PIPE_FORMAT_L8A8_SRGB,
+ target, bindings, geom_flags))
return PIPE_FORMAT_L8A8_SRGB;
- return default_srgba_format( screen, target, tex_usage, geom_flags );
+ return default_srgba_format( screen, target, bindings, geom_flags );
case GL_SLUMINANCE_EXT:
case GL_SLUMINANCE8_EXT:
- if (screen->is_format_supported( screen, PIPE_FORMAT_L8_SRGB, target, tex_usage, geom_flags ))
+ if (screen->is_format_supported(screen, PIPE_FORMAT_L8_SRGB,
+ target, bindings, geom_flags))
return PIPE_FORMAT_L8_SRGB;
- return default_srgba_format( screen, target, tex_usage, geom_flags );
+ return default_srgba_format( screen, target, bindings, geom_flags );
default:
return PIPE_FORMAT_NONE;
st_ChooseTextureFormat(GLcontext *ctx, GLint internalFormat,
GLenum format, GLenum type)
{
+ struct pipe_screen *screen = st_context(ctx)->pipe->screen;
enum pipe_format pFormat;
- uint usage = PIPE_BIND_SAMPLER_VIEW;
+ uint bindings;
(void) format;
(void) type;
/* GL textures may wind up being render targets, but we don't know
* that in advance. Specify potential render target flags now.
- * An alternative would be to destroy and re-create a texture when
- * we first start rendering to it.
*/
if (_mesa_is_depth_format(internalFormat) ||
_mesa_is_depthstencil_format(internalFormat))
- usage |= PIPE_BIND_DEPTH_STENCIL;
+ bindings = PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_DEPTH_STENCIL;
else
- usage |= PIPE_BIND_RENDER_TARGET;
+ bindings = PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET;
+
+ pFormat = st_choose_format(screen, internalFormat,
+ PIPE_TEXTURE_2D, bindings);
- pFormat = st_choose_format(ctx->st->pipe->screen, internalFormat,
- PIPE_TEXTURE_2D, usage);
- if (pFormat == PIPE_FORMAT_NONE)
+ if (pFormat == PIPE_FORMAT_NONE) {
+ /* try choosing format again, this time without render target bindings */
+ pFormat = st_choose_format(screen, internalFormat,
+ PIPE_TEXTURE_2D, PIPE_BIND_SAMPLER_VIEW);
+ }
+
+ if (pFormat == PIPE_FORMAT_NONE) {
+ /* no luck at all */
return MESA_FORMAT_NONE;
+ }
return st_pipe_format_to_mesa_format(pFormat);
}
projects / mesa.git / blobdiff