Based on work by Dave Airlie.
Changes by me:
1. Fix assertion in st
2. Change to use unpadded Gallium formats
---
src/mesa/state_tracker/st_draw.c | 11 ++++++++++-
src/mesa/state_tracker/st_extensions.c | 1 +
2 files changed, 11 insertions(+), 1 deletions(-)
diff --git a/src/mesa/state_tracker/st_draw.c b/src/mesa/state_tracker/st_draw.c
index b0d5b99..262cf9e 100644
--- a/src/mesa/state_tracker/st_draw.c
+++ b/src/mesa/state_tracker/st_draw.c
@@ -72,6 +72,13 @@ static GLuint float_types[4] = {
PIPE_FORMAT_R32G32B32A32_FLOAT
};
+static GLuint half_float_types[4] = {
+ PIPE_FORMAT_R16_FLOAT,
+ PIPE_FORMAT_R16G16_FLOAT,
+ PIPE_FORMAT_R16G16B16_FLOAT,
+ PIPE_FORMAT_R16G16B16A16_FLOAT
+};
+
static GLuint uint_types_norm[4] = {
PIPE_FORMAT_R32_UNORM,
PIPE_FORMAT_R32G32_UNORM,
@@ -173,7 +180,7 @@ st_pipe_vertex_format(GLenum type, GLuint size, GLenum
format,
GLboolean normalized)
{
assert((type >= GL_BYTE && type <= GL_DOUBLE) ||
- type == GL_FIXED);
+ type == GL_FIXED || type == GL_HALF_FLOAT);
assert(size >= 1);
assert(size <= 4);
assert(format == GL_RGBA || format == GL_BGRA);
@@ -189,6 +196,7 @@ st_pipe_vertex_format(GLenum type, GLuint size, GLenum
format,
switch (type) {
case GL_DOUBLE: return double_types[size-1];
case GL_FLOAT: return float_types[size-1];
+ case GL_HALF_FLOAT: return half_float_types[size-1];
case GL_INT: return int_types_norm[size-1];
case GL_SHORT: return short_types_norm[size-1];
case GL_BYTE: return byte_types_norm[size-1];
@@ -203,6 +211,7 @@ st_pipe_vertex_format(GLenum type, GLuint size, GLenum
format,
switch (type) {
case GL_DOUBLE: return double_types[size-1];
case GL_FLOAT: return float_types[size-1];
+ case GL_HALF_FLOAT: return half_float_types[size-1];
case GL_INT: return int_types_scale[size-1];
case GL_SHORT: return short_types_scale[size-1];
case GL_BYTE: return byte_types_scale[size-1];
diff --git a/src/mesa/state_tracker/st_extensions.c
b/src/mesa/state_tracker/st_extensions.c
index 31c03c0..6c19a1c 100644
--- a/src/mesa/state_tracker/st_extensions.c
+++ b/src/mesa/state_tracker/st_extensions.c
@@ -148,6 +148,7 @@ void st_init_extensions(struct st_context *st)
*/
ctx->Extensions.ARB_copy_buffer = GL_TRUE;
ctx->Extensions.ARB_fragment_program = GL_TRUE;
+ ctx->Extensions.ARB_half_float_vertex = GL_TRUE;
ctx->Extensions.ARB_map_buffer_range = GL_TRUE;
ctx->Extensions.ARB_multisample = GL_TRUE;
ctx->Extensions.ARB_texture_border_clamp = GL_TRUE; /* XXX temp */
--
1.6.6.1.476.g01ddb
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