Mesa (master): st/mesa: support EXT_texture_shared_exponent
Marek Olšák
mareko at kemper.freedesktop.org
Fri Apr 29 09:36:29 UTC 2011
Module: Mesa
Branch: master
Commit: 1da44f5923c5715d78a48dc300bbc6cbd3f3ea99
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=1da44f5923c5715d78a48dc300bbc6cbd3f3ea99
Author: Marek Olšák <maraeo at gmail.com>
Date: Tue Apr 26 02:23:33 2011 +0200
st/mesa: support EXT_texture_shared_exponent
Reviewed-by: Brian Paul <brianp at vmware.com>
---
src/mesa/state_tracker/st_cb_drawpixels.c | 4 ++++
src/mesa/state_tracker/st_extensions.c | 6 ++++++
src/mesa/state_tracker/st_format.c | 13 +++++++++++++
3 files changed, 23 insertions(+), 0 deletions(-)
diff --git a/src/mesa/state_tracker/st_cb_drawpixels.c b/src/mesa/state_tracker/st_cb_drawpixels.c
index 1707f82..be0cd61 100644
--- a/src/mesa/state_tracker/st_cb_drawpixels.c
+++ b/src/mesa/state_tracker/st_cb_drawpixels.c
@@ -372,6 +372,10 @@ internal_format(struct gl_context *ctx, GLenum format, GLenum type)
return
ctx->Extensions.ARB_texture_float ? GL_RGBA32F :
ctx->Extensions.EXT_texture_snorm ? GL_RGBA16_SNORM : GL_RGBA16;
+
+ case GL_UNSIGNED_INT_5_9_9_9_REV:
+ assert(ctx->Extensions.EXT_texture_shared_exponent);
+ return GL_RGB9_E5;
}
}
}
diff --git a/src/mesa/state_tracker/st_extensions.c b/src/mesa/state_tracker/st_extensions.c
index 339e00d..0ad1eda 100644
--- a/src/mesa/state_tracker/st_extensions.c
+++ b/src/mesa/state_tracker/st_extensions.c
@@ -576,4 +576,10 @@ void st_init_extensions(struct st_context *st)
if (st->pipe->texture_barrier) {
ctx->Extensions.NV_texture_barrier = GL_TRUE;
}
+
+ if (screen->is_format_supported(screen, PIPE_FORMAT_R9G9B9E5_FLOAT,
+ PIPE_TEXTURE_2D, 0,
+ PIPE_BIND_SAMPLER_VIEW)) {
+ ctx->Extensions.EXT_texture_shared_exponent = GL_TRUE;
+ }
}
diff --git a/src/mesa/state_tracker/st_format.c b/src/mesa/state_tracker/st_format.c
index 4e7bef2..91afab6 100644
--- a/src/mesa/state_tracker/st_format.c
+++ b/src/mesa/state_tracker/st_format.c
@@ -325,6 +325,9 @@ st_mesa_format_to_pipe_format(gl_format mesaFormat)
case MESA_FORMAT_SIGNED_I16:
return PIPE_FORMAT_I16_SNORM;
+ case MESA_FORMAT_RGB9_E5_FLOAT:
+ return PIPE_FORMAT_R9G9B9E5_FLOAT;
+
default:
assert(0);
return PIPE_FORMAT_NONE;
@@ -545,6 +548,9 @@ st_pipe_format_to_mesa_format(enum pipe_format format)
case PIPE_FORMAT_I16_SNORM:
return MESA_FORMAT_SIGNED_I16;
+ case PIPE_FORMAT_R9G9B9E5_FLOAT:
+ return MESA_FORMAT_RGB9_E5_FLOAT;
+
default:
assert(0);
return MESA_FORMAT_NONE;
@@ -1483,6 +1489,13 @@ st_choose_format(struct pipe_screen *screen, GLenum internalFormat,
target, sample_count, bindings);
}
+ case GL_RGB9_E5:
+ if (screen->is_format_supported(screen, PIPE_FORMAT_R9G9B9E5_FLOAT, target,
+ sample_count, bindings)) {
+ return PIPE_FORMAT_R9G9B9E5_FLOAT;
+ }
+ return PIPE_FORMAT_NONE;
+
default:
return PIPE_FORMAT_NONE;
}
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