Mesa (master): st/mesa: convert Mesa float formats to Gallium
Marek Olšák
mareko at kemper.freedesktop.org
Fri Apr 15 03:18:27 UTC 2011
Module: Mesa
Branch: master
Commit: 8e28d842d192e69ba8cae4f9754766a26ae8c739
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=8e28d842d192e69ba8cae4f9754766a26ae8c739
Author: Marek Olšák <maraeo at gmail.com>
Date: Wed Feb 16 00:40:37 2011 +0100
st/mesa: convert Mesa float formats to Gallium
Squashed commit of the following:
Author: Marek Olšák <maraeo at gmail.com>
st/mesa: require RGBA16F and RGBA32F to be renderable
st/mesa: fix L32F and L16F format translation
st/mesa: also convert the R/RG float formats
commit 49a9948b6a81b7d813304d081139d98e95ba5d1a
Author: Luca Barbieri <luca at luca-barbieri.com>
Date: Fri Aug 20 10:36:17 2010 +0200
mesa/st: enable ARB_texture_float if supported formats allow it
commit 7383632f7b6f9021b65f4973b7e7c99f0e8ce9b2
Author: Luca Barbieri <luca at luca-barbieri.com>
Date: Tue Aug 24 21:00:46 2010 +0200
mesa/st: support ARB_texture_float internal formats
commit 7c362cc06982586c2d29fac55f6bcc4bcd1550b5
Author: Luca Barbieri <luca at luca-barbieri.com>
Date: Tue Aug 24 21:00:33 2010 +0200
mesa/st: convert L/A/I floating point formats
---
src/mesa/state_tracker/st_extensions.c | 12 ++
src/mesa/state_tracker/st_format.c | 237 ++++++++++++++++++++++++++++++++
2 files changed, 249 insertions(+), 0 deletions(-)
diff --git a/src/mesa/state_tracker/st_extensions.c b/src/mesa/state_tracker/st_extensions.c
index 9bc9d7a..bdc0894 100644
--- a/src/mesa/state_tracker/st_extensions.c
+++ b/src/mesa/state_tracker/st_extensions.c
@@ -382,6 +382,18 @@ void st_init_extensions(struct st_context *st)
ctx->Extensions.EXT_packed_depth_stencil = GL_TRUE;
}
+ /* float support - assume nothing exclusively supports 64-bit floats */
+ if (screen->is_format_supported(screen, PIPE_FORMAT_R32G32B32A32_FLOAT,
+ PIPE_TEXTURE_2D, 0,
+ PIPE_BIND_SAMPLER_VIEW |
+ PIPE_BIND_RENDER_TARGET) &&
+ screen->is_format_supported(screen, PIPE_FORMAT_R16G16B16A16_FLOAT,
+ PIPE_TEXTURE_2D, 0,
+ PIPE_BIND_SAMPLER_VIEW |
+ PIPE_BIND_RENDER_TARGET)) {
+ ctx->Extensions.ARB_texture_float = GL_TRUE;
+ }
+
/* sRGB support */
if (screen->is_format_supported(screen, PIPE_FORMAT_A8B8G8R8_SRGB,
PIPE_TEXTURE_2D, 0,
diff --git a/src/mesa/state_tracker/st_format.c b/src/mesa/state_tracker/st_format.c
index 957a06c..8e50dbd 100644
--- a/src/mesa/state_tracker/st_format.c
+++ b/src/mesa/state_tracker/st_format.c
@@ -214,6 +214,39 @@ st_mesa_format_to_pipe_format(gl_format mesaFormat)
case MESA_FORMAT_SARGB8:
return PIPE_FORMAT_B8G8R8A8_SRGB;
#endif
+ case MESA_FORMAT_RGBA_FLOAT32:
+ return PIPE_FORMAT_R32G32B32A32_FLOAT;
+ case MESA_FORMAT_RGBA_FLOAT16:
+ return PIPE_FORMAT_R16G16B16A16_FLOAT;
+ case MESA_FORMAT_RGB_FLOAT32:
+ return PIPE_FORMAT_R32G32B32_FLOAT;
+ case MESA_FORMAT_RGB_FLOAT16:
+ return PIPE_FORMAT_R16G16B16_FLOAT;
+ case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32:
+ return PIPE_FORMAT_L32A32_FLOAT;
+ case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16:
+ return PIPE_FORMAT_L16A16_FLOAT;
+ case MESA_FORMAT_LUMINANCE_FLOAT32:
+ return PIPE_FORMAT_L32_FLOAT;
+ case MESA_FORMAT_LUMINANCE_FLOAT16:
+ return PIPE_FORMAT_L16_FLOAT;
+ case MESA_FORMAT_ALPHA_FLOAT32:
+ return PIPE_FORMAT_A32_FLOAT;
+ case MESA_FORMAT_ALPHA_FLOAT16:
+ return PIPE_FORMAT_A16_FLOAT;
+ case MESA_FORMAT_INTENSITY_FLOAT32:
+ return PIPE_FORMAT_I32_FLOAT;
+ case MESA_FORMAT_INTENSITY_FLOAT16:
+ return PIPE_FORMAT_I16_FLOAT;
+ case MESA_FORMAT_R_FLOAT32:
+ return PIPE_FORMAT_R32_FLOAT;
+ case MESA_FORMAT_R_FLOAT16:
+ return PIPE_FORMAT_R16_FLOAT;
+ case MESA_FORMAT_RG_FLOAT32:
+ return PIPE_FORMAT_R32G32_FLOAT;
+ case MESA_FORMAT_RG_FLOAT16:
+ return PIPE_FORMAT_R16G16_FLOAT;
+
case MESA_FORMAT_R8:
return PIPE_FORMAT_R8_UNORM;
case MESA_FORMAT_R16:
@@ -403,6 +436,38 @@ st_pipe_format_to_mesa_format(enum pipe_format format)
case PIPE_FORMAT_B8G8R8A8_SRGB:
return MESA_FORMAT_SARGB8;
#endif
+ case PIPE_FORMAT_R32G32B32A32_FLOAT:
+ return MESA_FORMAT_RGBA_FLOAT32;
+ case PIPE_FORMAT_R16G16B16A16_FLOAT:
+ return MESA_FORMAT_RGBA_FLOAT16;
+ case PIPE_FORMAT_R32G32B32_FLOAT:
+ return MESA_FORMAT_RGB_FLOAT32;
+ case PIPE_FORMAT_R16G16B16_FLOAT:
+ return MESA_FORMAT_RGB_FLOAT16;
+ case PIPE_FORMAT_L32A32_FLOAT:
+ return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32;
+ case PIPE_FORMAT_L16A16_FLOAT:
+ return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16;
+ case PIPE_FORMAT_L32_FLOAT:
+ return MESA_FORMAT_LUMINANCE_FLOAT32;
+ case PIPE_FORMAT_L16_FLOAT:
+ return MESA_FORMAT_LUMINANCE_FLOAT16;
+ case PIPE_FORMAT_A32_FLOAT:
+ return MESA_FORMAT_ALPHA_FLOAT32;
+ case PIPE_FORMAT_A16_FLOAT:
+ return MESA_FORMAT_ALPHA_FLOAT16;
+ case PIPE_FORMAT_I32_FLOAT:
+ return MESA_FORMAT_INTENSITY_FLOAT32;
+ case PIPE_FORMAT_I16_FLOAT:
+ return MESA_FORMAT_INTENSITY_FLOAT16;
+ case PIPE_FORMAT_R32_FLOAT:
+ return MESA_FORMAT_R_FLOAT32;
+ case PIPE_FORMAT_R16_FLOAT:
+ return MESA_FORMAT_R_FLOAT16;
+ case PIPE_FORMAT_R32G32_FLOAT:
+ return MESA_FORMAT_RG_FLOAT32;
+ case PIPE_FORMAT_R16G16_FLOAT:
+ return MESA_FORMAT_RG_FLOAT16;
case PIPE_FORMAT_R8_UNORM:
return MESA_FORMAT_R8;
@@ -887,6 +952,178 @@ st_choose_format(struct pipe_screen *screen, GLenum internalFormat,
return PIPE_FORMAT_L8_SRGB;
return default_srgba_format( screen, target, sample_count, bindings);
+ /* prefer formats in order of data size, choosing 16-bit ones if equal sized */
+ case GL_RGBA16F_ARB:
+ case GL_RGB16F_ARB:
+ {
+ static const enum pipe_format formats[] = {
+ PIPE_FORMAT_R16G16B16A16_FLOAT,
+ PIPE_FORMAT_R32G32B32A32_FLOAT
+ };
+ return find_supported_format(screen, formats, Elements(formats),
+ target, sample_count, bindings);
+ }
+ case GL_LUMINANCE_ALPHA16F_ARB:
+ {
+ static const enum pipe_format formats[] = {
+ PIPE_FORMAT_L16A16_FLOAT,
+ PIPE_FORMAT_R16G16B16A16_FLOAT,
+ PIPE_FORMAT_L32A32_FLOAT,
+ PIPE_FORMAT_R32G32B32A32_FLOAT
+ };
+ return find_supported_format(screen, formats, Elements(formats),
+ target, sample_count, bindings);
+ }
+ case GL_ALPHA16F_ARB:
+ {
+ static const enum pipe_format formats[] = {
+ PIPE_FORMAT_A16_FLOAT,
+ PIPE_FORMAT_L16A16_FLOAT,
+ PIPE_FORMAT_A32_FLOAT,
+ PIPE_FORMAT_R16G16B16A16_FLOAT,
+ PIPE_FORMAT_L32A32_FLOAT,
+ PIPE_FORMAT_R32G32B32A32_FLOAT
+ };
+ return find_supported_format(screen, formats, Elements(formats),
+ target, sample_count, bindings);
+ }
+ case GL_INTENSITY16F_ARB:
+ {
+ static const enum pipe_format formats[] = {
+ PIPE_FORMAT_I16_FLOAT,
+ PIPE_FORMAT_L16A16_FLOAT,
+ PIPE_FORMAT_I32_FLOAT,
+ PIPE_FORMAT_R16G16B16A16_FLOAT,
+ PIPE_FORMAT_L32A32_FLOAT,
+ PIPE_FORMAT_R32G32B32A32_FLOAT
+ };
+ return find_supported_format(screen, formats, Elements(formats),
+ target, sample_count, bindings);
+ }
+ case GL_LUMINANCE16F_ARB:
+ {
+ static const enum pipe_format formats[] = {
+ PIPE_FORMAT_L16_FLOAT,
+ PIPE_FORMAT_L16A16_FLOAT,
+ PIPE_FORMAT_L32_FLOAT,
+ PIPE_FORMAT_R16G16B16A16_FLOAT,
+ PIPE_FORMAT_L32A32_FLOAT,
+ PIPE_FORMAT_R32G32B32A32_FLOAT
+ };
+ return find_supported_format(screen, formats, Elements(formats),
+ target, sample_count, bindings);
+ }
+ case GL_R16F:
+ {
+ static const enum pipe_format formats[] = {
+ PIPE_FORMAT_R16_FLOAT,
+ PIPE_FORMAT_R16G16_FLOAT,
+ PIPE_FORMAT_R32_FLOAT,
+ PIPE_FORMAT_R16G16B16A16_FLOAT,
+ PIPE_FORMAT_R32G32_FLOAT,
+ PIPE_FORMAT_R32G32B32A32_FLOAT
+ };
+ return find_supported_format(screen, formats, Elements(formats),
+ target, sample_count, bindings);
+ }
+ case GL_RG16F:
+ {
+ static const enum pipe_format formats[] = {
+ PIPE_FORMAT_R16G16_FLOAT,
+ PIPE_FORMAT_R16G16B16A16_FLOAT,
+ PIPE_FORMAT_R32G32_FLOAT,
+ PIPE_FORMAT_R32G32B32A32_FLOAT
+ };
+ return find_supported_format(screen, formats, Elements(formats),
+ target, sample_count, bindings);
+ }
+
+ /* try a 32-bit format if available, otherwise fallback to a 16-bit one */
+ case GL_RGBA32F_ARB:
+ case GL_RGB32F_ARB:
+ {
+ static const enum pipe_format formats[] = {
+ PIPE_FORMAT_R32G32B32A32_FLOAT,
+ PIPE_FORMAT_R16G16B16A16_FLOAT
+ };
+ return find_supported_format(screen, formats, Elements(formats),
+ target, sample_count, bindings);
+ }
+ case GL_LUMINANCE_ALPHA32F_ARB:
+ {
+ static const enum pipe_format formats[] = {
+ PIPE_FORMAT_L32A32_FLOAT,
+ PIPE_FORMAT_R32G32B32A32_FLOAT,
+ PIPE_FORMAT_L16A16_FLOAT,
+ PIPE_FORMAT_R16G16B16A16_FLOAT
+ };
+ return find_supported_format(screen, formats, Elements(formats),
+ target, sample_count, bindings);
+ }
+ case GL_ALPHA32F_ARB:
+ {
+ static const enum pipe_format formats[] = {
+ PIPE_FORMAT_A32_FLOAT,
+ PIPE_FORMAT_L32A32_FLOAT,
+ PIPE_FORMAT_R32G32B32A32_FLOAT,
+ PIPE_FORMAT_A16_FLOAT,
+ PIPE_FORMAT_L16A16_FLOAT,
+ PIPE_FORMAT_R16G16B16A16_FLOAT
+ };
+ return find_supported_format(screen, formats, Elements(formats),
+ target, sample_count, bindings);
+ }
+ case GL_INTENSITY32F_ARB:
+ {
+ static const enum pipe_format formats[] = {
+ PIPE_FORMAT_I32_FLOAT,
+ PIPE_FORMAT_L32A32_FLOAT,
+ PIPE_FORMAT_R32G32B32A32_FLOAT,
+ PIPE_FORMAT_I16_FLOAT,
+ PIPE_FORMAT_L16A16_FLOAT,
+ PIPE_FORMAT_R16G16B16A16_FLOAT
+ };
+ return find_supported_format(screen, formats, Elements(formats),
+ target, sample_count, bindings);
+ }
+ case GL_LUMINANCE32F_ARB:
+ {
+ static const enum pipe_format formats[] = {
+ PIPE_FORMAT_L32_FLOAT,
+ PIPE_FORMAT_L32A32_FLOAT,
+ PIPE_FORMAT_R32G32B32A32_FLOAT,
+ PIPE_FORMAT_L16_FLOAT,
+ PIPE_FORMAT_L16A16_FLOAT,
+ PIPE_FORMAT_R16G16B16A16_FLOAT
+ };
+ return find_supported_format(screen, formats, Elements(formats),
+ target, sample_count, bindings);
+ }
+ case GL_R32F:
+ {
+ static const enum pipe_format formats[] = {
+ PIPE_FORMAT_R32_FLOAT,
+ PIPE_FORMAT_R32G32_FLOAT,
+ PIPE_FORMAT_R32G32B32A32_FLOAT,
+ PIPE_FORMAT_R16_FLOAT,
+ PIPE_FORMAT_R16G16_FLOAT,
+ PIPE_FORMAT_R16G16B16A16_FLOAT
+ };
+ return find_supported_format(screen, formats, Elements(formats),
+ target, sample_count, bindings);
+ }
+ case GL_RG32F:
+ {
+ static const enum pipe_format formats[] = {
+ PIPE_FORMAT_R32G32_FLOAT,
+ PIPE_FORMAT_R32G32B32A32_FLOAT,
+ PIPE_FORMAT_R16G16_FLOAT,
+ PIPE_FORMAT_R16G16B16A16_FLOAT
+ };
+ return find_supported_format(screen, formats, Elements(formats),
+ target, sample_count, bindings);
+ }
+
case GL_RED:
case GL_R8:
if (screen->is_format_supported(screen, PIPE_FORMAT_R8_UNORM, target,
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