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authorMarek Olšák <maraeo@gmail.com>2010-05-13 01:45:57 +0200
committerMarek Olšák <maraeo@gmail.com>2010-05-13 02:37:56 +0200
commitdca2a9fcd46d4b7063236c609fb31b756cbe9f8c (patch)
treee8bd11bdf34765862bb4cc02af9360b9b1a04958 /src
parent617c51daf231dc2cbb4656f22737162c94a25efa (diff)
r300g: fill out the shader limits
Diffstat (limited to 'src')
-rw-r--r--src/gallium/drivers/r300/r300_screen.c58
1 files changed, 56 insertions, 2 deletions
diff --git a/src/gallium/drivers/r300/r300_screen.c b/src/gallium/drivers/r300/r300_screen.c
index 89982c870d..1a3454c8f2 100644
--- a/src/gallium/drivers/r300/r300_screen.c
+++ b/src/gallium/drivers/r300/r300_screen.c
@@ -79,6 +79,11 @@ static const char* r300_get_name(struct pipe_screen* pscreen)
static int r300_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
{
struct r300_screen* r300screen = r300_screen(pscreen);
+ boolean is_r400 = r300screen->caps.is_r400;
+ boolean is_r500 = r300screen->caps.is_r500;
+
+ /* XXX extended shader capabilities of r400 unimplemented */
+ is_r400 = FALSE;
switch (param) {
case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
@@ -122,7 +127,7 @@ static int r300_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
- if (r300screen->caps.is_r500) {
+ if (is_r500) {
/* 13 == 4096 */
return 13;
} else {
@@ -140,7 +145,7 @@ static int r300_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
case PIPE_CAP_BLEND_EQUATION_SEPARATE:
return 1;
case PIPE_CAP_SM3:
- if (r300screen->caps.is_r500) {
+ if (is_r500) {
return 1;
} else {
return 0;
@@ -159,6 +164,55 @@ static int r300_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
return 0;
+
+ /* Fragment shader limits. */
+ case PIPE_CAP_MAX_FS_INSTRUCTIONS:
+ return is_r500 || is_r400 ? 512 : 96;
+ case PIPE_CAP_MAX_FS_ALU_INSTRUCTIONS:
+ return is_r500 || is_r400 ? 512 : 64;
+ case PIPE_CAP_MAX_FS_TEX_INSTRUCTIONS:
+ return is_r500 || is_r400 ? 512 : 32;
+ case PIPE_CAP_MAX_FS_TEX_INDIRECTIONS:
+ return is_r500 ? 512 : 4;
+ case PIPE_CAP_MAX_FS_CONTROL_FLOW_DEPTH:
+ return is_r500 ? 64 : 0; /* Actually unlimited on r500. */
+ case PIPE_CAP_MAX_FS_INPUTS:
+ /* 2 colors + 8 texcoords are always supported
+ * (minus fog and wpos).
+ *
+ * R500 has the ability to turn 3rd and 4th color into
+ * additional texcoords but there is no two-sided color
+ * selection then. However the facing bit can be used instead. */
+ return 10;
+ case PIPE_CAP_MAX_FS_CONSTS:
+ return is_r500 ? 256 : 32;
+ case PIPE_CAP_MAX_FS_TEMPS:
+ return is_r500 ? 128 : is_r400 ? 64 : 32;
+ case PIPE_CAP_MAX_FS_ADDRS:
+ return 0;
+ case PIPE_CAP_MAX_FS_PREDS:
+ return is_r500 ? 1 : 0;
+
+ /* Vertex shader limits. */
+ case PIPE_CAP_MAX_VS_INSTRUCTIONS:
+ case PIPE_CAP_MAX_VS_ALU_INSTRUCTIONS:
+ return is_r500 ? 1024 : 256;
+ case PIPE_CAP_MAX_VS_TEX_INSTRUCTIONS:
+ case PIPE_CAP_MAX_VS_TEX_INDIRECTIONS:
+ return 0;
+ case PIPE_CAP_MAX_VS_CONTROL_FLOW_DEPTH:
+ return is_r500 ? 4 : 0; /* For loops; not sure about conditionals. */
+ case PIPE_CAP_MAX_VS_INPUTS:
+ return 16;
+ case PIPE_CAP_MAX_VS_CONSTS:
+ return 256;
+ case PIPE_CAP_MAX_VS_TEMPS:
+ return 32;
+ case PIPE_CAP_MAX_VS_ADDRS:
+ return 1; /* XXX guessed */
+ case PIPE_CAP_MAX_VS_PREDS:
+ return is_r500 ? 4 : 0; /* XXX guessed. */
+
default:
fprintf(stderr, "r300: Implementation error: Bad param %d\n",
param);