Mesa (master): r300g: add support for more unaligned vertex formats

[Marek Olšák]

Module: Mesa
Branch: master
Commit: 307f28cf1e8aed0c764bb1e38752ff6f42fee2da
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=307f28cf1e8aed0c764bb1e38752ff6f42fee2da

Author: Marek Olšák <maraeo at gmail.com>
Date:   Tue Apr 27 00:09:21 2010 +0200

r300g: add support for more unaligned vertex formats

An aligned stride is still needed for it to work.

I am slowly approaching the Sauerbraten milestone!

---

 src/gallium/drivers/r300/r300_state.c |   34 ++++++++++++++++++++++++++++++++-
 1 files changed, 33 insertions(+), 1 deletions(-)

diff --git a/src/gallium/drivers/r300/r300_state.c b/src/gallium/drivers/r300/r300_state.c
index cc8209d..edd5222 100644
--- a/src/gallium/drivers/r300/r300_state.c
+++ b/src/gallium/drivers/r300/r300_state.c
@@ -1294,18 +1294,46 @@ static void* r300_create_vertex_elements_state(struct pipe_context* pipe,
                 /* Replace some formats with their aligned counterparts,
                  * this is OK because we check for aligned strides too. */
                 switch (*format) {
+                    /* Align to RGBA8. */
+                    case PIPE_FORMAT_R8_UNORM:
+                    case PIPE_FORMAT_R8G8_UNORM:
                     case PIPE_FORMAT_R8G8B8_UNORM:
-                        *format = PIPE_FORMAT_R8G8B8X8_UNORM;
+                        *format = PIPE_FORMAT_R8G8B8A8_UNORM;
                         continue;
+                    case PIPE_FORMAT_R8_SNORM:
+                    case PIPE_FORMAT_R8G8_SNORM:
                     case PIPE_FORMAT_R8G8B8_SNORM:
                         *format = PIPE_FORMAT_R8G8B8A8_SNORM;
                         continue;
+                    case PIPE_FORMAT_R8_USCALED:
+                    case PIPE_FORMAT_R8G8_USCALED:
                     case PIPE_FORMAT_R8G8B8_USCALED:
                         *format = PIPE_FORMAT_R8G8B8A8_USCALED;
                         continue;
+                    case PIPE_FORMAT_R8_SSCALED:
+                    case PIPE_FORMAT_R8G8_SSCALED:
                     case PIPE_FORMAT_R8G8B8_SSCALED:
                         *format = PIPE_FORMAT_R8G8B8A8_SSCALED;
                         continue;
+
+                    /* Align to RG16. */
+                    case PIPE_FORMAT_R16_UNORM:
+                        *format = PIPE_FORMAT_R16G16_UNORM;
+                        continue;
+                    case PIPE_FORMAT_R16_SNORM:
+                        *format = PIPE_FORMAT_R16G16_SNORM;
+                        continue;
+                    case PIPE_FORMAT_R16_USCALED:
+                        *format = PIPE_FORMAT_R16G16_USCALED;
+                        continue;
+                    case PIPE_FORMAT_R16_SSCALED:
+                        *format = PIPE_FORMAT_R16G16_SSCALED;
+                        continue;
+                    case PIPE_FORMAT_R16_FLOAT:
+                        *format = PIPE_FORMAT_R16G16_FLOAT;
+                        continue;
+
+                    /* Align to RGBA16. */
                     case PIPE_FORMAT_R16G16B16_UNORM:
                         *format = PIPE_FORMAT_R16G16B16A16_UNORM;
                         continue;
@@ -1318,6 +1346,10 @@ static void* r300_create_vertex_elements_state(struct pipe_context* pipe,
                     case PIPE_FORMAT_R16G16B16_SSCALED:
                         *format = PIPE_FORMAT_R16G16B16A16_SSCALED;
                         continue;
+                    case PIPE_FORMAT_R16G16B16_FLOAT:
+                        *format = PIPE_FORMAT_R16G16B16A16_FLOAT;
+                        continue;
+
                     default:;
                 }