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mesa: finish up ARB_texture_float

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Squashed commit of the following:

Author: Marek Olšák <maraeo@gmail.com>

    mesa: handle floating-point formats in _mesa_base_fbo_format
    mesa: add ARB/ATI_texture_float, remove MESAX_texture_float

commit 123bb110852739dffadcc81ad80b005b1c4f586d
Author: Luca Barbieri <luca@luca-barbieri.com>
Date:   Wed Aug 25 01:35:42 2010 +0200

    mesa: compute floatMode for FBOs and return it on RGBA_FLOAT_MODE
This commit is contained in:
Marek Olšák
2011-02-16 00:35:44 +01:00
parent 0ecbb0ab74
commit 15f99d1362
5 changed files with 46 additions and 5 deletions
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32
src/mesa/main/fbobject.c
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@@ -1145,7 +1145,37 @@ _mesa_base_fbo_format(struct gl_context *ctx, GLenum internalFormat)
case GL_INTENSITY16_SNORM:
return ctx->Extensions.EXT_texture_snorm &&
ctx->Extensions.ARB_framebuffer_object ? GL_INTENSITY : 0;
/* XXX add floating point and integer formats eventually */
case GL_R16F:
case GL_R32F:
return ctx->Extensions.ARB_texture_rg &&
ctx->Extensions.ARB_texture_float ? GL_RED : 0;
case GL_RG16F:
case GL_RG32F:
return ctx->Extensions.ARB_texture_rg &&
ctx->Extensions.ARB_texture_float ? GL_RG : 0;
case GL_RGB16F:
case GL_RGB32F:
return ctx->Extensions.ARB_texture_float ? GL_RGB : 0;
case GL_RGBA16F:
case GL_RGBA32F:
return ctx->Extensions.ARB_texture_float ? GL_RGBA : 0;
case GL_ALPHA16F_ARB:
case GL_ALPHA32F_ARB:
return ctx->Extensions.ARB_texture_float &&
ctx->Extensions.ARB_framebuffer_object ? GL_ALPHA : 0;
case GL_LUMINANCE16F_ARB:
case GL_LUMINANCE32F_ARB:
return ctx->Extensions.ARB_texture_float &&
ctx->Extensions.ARB_framebuffer_object ? GL_LUMINANCE : 0;
case GL_LUMINANCE_ALPHA16F_ARB:
case GL_LUMINANCE_ALPHA32F_ARB:
return ctx->Extensions.ARB_texture_float &&
ctx->Extensions.ARB_framebuffer_object ? GL_LUMINANCE_ALPHA : 0;
case GL_INTENSITY16F_ARB:
case GL_INTENSITY32F_ARB:
return ctx->Extensions.ARB_texture_float &&
ctx->Extensions.ARB_framebuffer_object ? GL_INTENSITY : 0;
/* XXX add integer formats eventually */
default:
return 0;
}