[PATCH 2/2] gallium: Add new fine grained PIPE_CAP_xx for shader limits.

José Fonseca jfonseca at vmware.com
Tue May 11 03:40:04 PDT 2010


PIPE_CAP_GLSL and PIPE_CAP_SM3 not removed yet, as opcode support is not
yet covered.
---
 src/gallium/drivers/llvmpipe/lp_screen.c |   30 ++++++++
 src/gallium/include/pipe/p_defines.h     |   22 ++++++
 src/mesa/state_tracker/st_extensions.c   |  108 +++++------------------------
 3 files changed, 71 insertions(+), 89 deletions(-)

diff --git a/src/gallium/drivers/llvmpipe/lp_screen.c b/src/gallium/drivers/llvmpipe/lp_screen.c
index 1b4d21c..7946794 100644
--- a/src/gallium/drivers/llvmpipe/lp_screen.c
+++ b/src/gallium/drivers/llvmpipe/lp_screen.c
@@ -34,6 +34,7 @@
 #include "pipe/p_defines.h"
 #include "pipe/p_screen.h"
 
+#include "gallivm/lp_bld_limits.h"
 #include "lp_texture.h"
 #include "lp_fence.h"
 #include "lp_jit.h"
@@ -133,7 +134,35 @@ llvmpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
       return 0;
+   case PIPE_CAP_MAX_VS_INSTRUCTIONS:
+   case PIPE_CAP_MAX_FS_INSTRUCTIONS:
+   case PIPE_CAP_MAX_VS_TEX_INSTRUCTIONS:
+   case PIPE_CAP_MAX_FS_TEX_INSTRUCTIONS:
+   case PIPE_CAP_MAX_VS_TEX_INDIRECTIONS:
+   case PIPE_CAP_MAX_FS_TEX_INDIRECTIONS:
+      /* There is no limit in number of instructions beyond available memory */
+      return 32768;
+   case PIPE_CAP_MAX_VS_CONTROL_FLOW_DEPTH:
+   case PIPE_CAP_MAX_FS_CONTROL_FLOW_DEPTH:
+      return LP_MAX_TGSI_NESTING;
+   case PIPE_CAP_MAX_VS_INPUTS:
+   case PIPE_CAP_MAX_FS_INPUTS:
+      return PIPE_MAX_ATTRIBS;
+   case PIPE_CAP_MAX_FS_CONSTS:
+   case PIPE_CAP_MAX_VS_CONSTS:
+      /* There is no limit in number of constants beyond available memory */
+      return 32768;
+   case PIPE_CAP_MAX_VS_TEMPS:
+   case PIPE_CAP_MAX_FS_TEMPS:
+      return LP_MAX_TGSI_TEMPS;
+   case PIPE_CAP_MAX_VS_ADDRS:
+   case PIPE_CAP_MAX_FS_ADDRS:
+      return LP_MAX_TGSI_ADDRS;
+   case PIPE_CAP_MAX_VS_PREDS:
+   case PIPE_CAP_MAX_FS_PREDS:
+      return LP_MAX_TGSI_PREDS;
    default:
+      assert(0);
       return 0;
    }
 }
@@ -156,6 +185,7 @@ llvmpipe_get_paramf(struct pipe_screen *screen, enum pipe_cap param)
    case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
       return 16.0; /* arbitrary */
    default:
+      assert(0);
       return 0;
    }
 }
diff --git a/src/gallium/include/pipe/p_defines.h b/src/gallium/include/pipe/p_defines.h
index 7e43edc..1354322 100644
--- a/src/gallium/include/pipe/p_defines.h
+++ b/src/gallium/include/pipe/p_defines.h
@@ -457,6 +457,28 @@ enum pipe_cap {
    PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT,
    PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER,
    PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER,
+
+   /*
+    * Shader limits.
+    */
+   PIPE_CAP_MAX_VS_INSTRUCTIONS,
+   PIPE_CAP_MAX_VS_TEX_INSTRUCTIONS,
+   PIPE_CAP_MAX_VS_TEX_INDIRECTIONS,
+   PIPE_CAP_MAX_VS_CONTROL_FLOW_DEPTH,
+   PIPE_CAP_MAX_VS_INPUTS,
+   PIPE_CAP_MAX_VS_CONSTS,
+   PIPE_CAP_MAX_VS_TEMPS,
+   PIPE_CAP_MAX_VS_ADDRS,
+   PIPE_CAP_MAX_VS_PREDS,
+   PIPE_CAP_MAX_FS_INSTRUCTIONS,
+   PIPE_CAP_MAX_FS_TEX_INSTRUCTIONS,
+   PIPE_CAP_MAX_FS_TEX_INDIRECTIONS,
+   PIPE_CAP_MAX_FS_CONTROL_FLOW_DEPTH,
+   PIPE_CAP_MAX_FS_INPUTS,
+   PIPE_CAP_MAX_FS_CONSTS,
+   PIPE_CAP_MAX_FS_TEMPS,
+   PIPE_CAP_MAX_FS_ADDRS,
+   PIPE_CAP_MAX_FS_PREDS
 };
 
 
diff --git a/src/mesa/state_tracker/st_extensions.c b/src/mesa/state_tracker/st_extensions.c
index 5b2e49c..7ae08bb 100644
--- a/src/mesa/state_tracker/st_extensions.c
+++ b/src/mesa/state_tracker/st_extensions.c
@@ -142,95 +142,25 @@ void st_init_limits(struct st_context *st)
    /* Quads always follow GL provoking rules. */
    c->QuadsFollowProvokingVertexConvention = GL_FALSE;
 
-   if (screen->get_param(screen, PIPE_CAP_GLSL)) {
-      /*
-       * In the lack of more fine grained capabilities, if the pipe driver supports
-       * GLSL then assume native limits match Mesa software limits.
-       */
-
-      pc = &c->FragmentProgram;
-      pc->MaxNativeInstructions      = pc->MaxInstructions;
-      pc->MaxNativeAluInstructions   = pc->MaxAluInstructions;
-      pc->MaxNativeTexInstructions   = pc->MaxTexInstructions;
-      pc->MaxNativeTexIndirections   = pc->MaxTexIndirections;
-      pc->MaxNativeAttribs           = pc->MaxAttribs;
-      pc->MaxNativeTemps             = pc->MaxTemps;
-      pc->MaxNativeAddressRegs       = pc->MaxAddressRegs;
-      pc->MaxNativeParameters        = pc->MaxParameters;
-
-      pc = &c->VertexProgram;
-      pc->MaxNativeInstructions      = pc->MaxInstructions;
-      pc->MaxNativeAluInstructions   = pc->MaxAluInstructions;
-      pc->MaxNativeTexInstructions   = pc->MaxTexInstructions;
-      pc->MaxNativeTexIndirections   = pc->MaxTexIndirections;
-      pc->MaxNativeAttribs           = pc->MaxAttribs;
-      pc->MaxNativeTemps             = pc->MaxTemps;
-      pc->MaxNativeAddressRegs       = pc->MaxAddressRegs;
-      pc->MaxNativeParameters        = pc->MaxParameters;
-   } else if (screen->get_param(screen, PIPE_CAP_SM3)) {
-      /*
-       * Assume the hardware meets the minimum requirements
-       * for Shader Model 3.
-       *
-       * See also:
-       * - http://msdn.microsoft.com/en-us/library/bb172920(VS.85).aspx
-       * - http://msdn.microsoft.com/en-us/library/bb172963(VS.85).aspx
-       */
-
-      pc = &c->FragmentProgram;
-      pc->MaxNativeInstructions      = 512; /* D3DMIN30SHADERINSTRUCTIONS */
-      pc->MaxNativeAluInstructions   = pc->MaxNativeInstructions;
-      pc->MaxNativeTexInstructions   = pc->MaxNativeInstructions;
-      pc->MaxNativeTexIndirections   = pc->MaxNativeTexInstructions;
-      pc->MaxNativeAttribs           = 10;
-      pc->MaxNativeTemps             = 32;
-      pc->MaxNativeAddressRegs       = 1; /* aL */
-      pc->MaxNativeParameters        = 224;
-
-      pc = &c->VertexProgram;
-      pc->MaxNativeInstructions      = 512; /* D3DMIN30SHADERINSTRUCTIONS */
-      pc->MaxNativeAluInstructions   = pc->MaxNativeInstructions;
-      pc->MaxNativeTexInstructions   = pc->MaxNativeInstructions;
-      pc->MaxNativeTexIndirections   = pc->MaxNativeTexInstructions;
-      pc->MaxNativeAttribs           = 16;
-      pc->MaxNativeTemps             = 32;
-      pc->MaxNativeAddressRegs       = 2; /* a0 and aL */
-      pc->MaxNativeParameters        = 256;
-   } else {
-      /*
-       * Assume the hardware meets the minimum requirements
-       * for Shader Model 2.
-       *
-       * See also:
-       * - http://msdn.microsoft.com/en-us/library/bb172918(VS.85).aspx
-       * - http://msdn.microsoft.com/en-us/library/bb172961(VS.85).aspx
-       */
-
-      pc = &c->FragmentProgram;
-      pc->MaxNativeInstructions      = 96; /* D3DPS20_MIN_NUMINSTRUCTIONSLOTS */
-      pc->MaxNativeAluInstructions   = 64;
-      pc->MaxNativeTexInstructions   = 32;
-      pc->MaxNativeTexIndirections   = pc->MaxNativeTexInstructions;
-      pc->MaxNativeAttribs           = 10; /* 2 color + 8 texture coord */
-      pc->MaxNativeTemps             = 12; /* D3DPS20_MIN_NUMTEMPS */
-      pc->MaxNativeAddressRegs       = 0;
-      pc->MaxNativeParameters        = 16;
-
-      pc = &c->VertexProgram;
-      pc->MaxNativeInstructions      = 256;
-      pc->MaxNativeAluInstructions   = 256;
-      pc->MaxNativeTexInstructions   = 0;
-      pc->MaxNativeTexIndirections   = 0;
-      pc->MaxNativeAttribs           = 16;
-      pc->MaxNativeTemps             = 12; /* D3DVS20_MIN_NUMTEMPS */
-      pc->MaxNativeAddressRegs       = 2; /* a0 and aL */
-      pc->MaxNativeParameters        = 256;
-   }
-
-   if (!screen->get_param(screen, PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS)) {
-      c->VertexProgram.MaxNativeTexInstructions = 0;
-      c->VertexProgram.MaxNativeTexIndirections = 0;
-   }
+   pc = &c->FragmentProgram;
+   pc->MaxNativeInstructions    = screen->get_param(screen, PIPE_CAP_MAX_FS_INSTRUCTIONS);
+   pc->MaxNativeAluInstructions = pc->MaxAluInstructions;
+   pc->MaxNativeTexInstructions = screen->get_param(screen, PIPE_CAP_MAX_FS_TEX_INSTRUCTIONS);
+   pc->MaxNativeTexIndirections = screen->get_param(screen, PIPE_CAP_MAX_FS_TEX_INDIRECTIONS);
+   pc->MaxNativeAttribs         = screen->get_param(screen, PIPE_CAP_MAX_FS_INPUTS);
+   pc->MaxNativeTemps           = screen->get_param(screen, PIPE_CAP_MAX_FS_TEMPS);
+   pc->MaxNativeAddressRegs     = screen->get_param(screen, PIPE_CAP_MAX_FS_ADDRS);
+   pc->MaxNativeParameters      = screen->get_param(screen, PIPE_CAP_MAX_FS_CONSTS);
+
+   pc = &c->VertexProgram;
+   pc->MaxNativeInstructions    = screen->get_param(screen, PIPE_CAP_MAX_VS_INSTRUCTIONS);
+   pc->MaxNativeAluInstructions = pc->MaxAluInstructions;
+   pc->MaxNativeTexInstructions = screen->get_param(screen, PIPE_CAP_MAX_VS_TEX_INSTRUCTIONS);
+   pc->MaxNativeTexIndirections = screen->get_param(screen, PIPE_CAP_MAX_VS_TEX_INDIRECTIONS);
+   pc->MaxNativeAttribs         = screen->get_param(screen, PIPE_CAP_MAX_VS_INPUTS);
+   pc->MaxNativeTemps           = screen->get_param(screen, PIPE_CAP_MAX_VS_TEMPS);
+   pc->MaxNativeAddressRegs     = screen->get_param(screen, PIPE_CAP_MAX_VS_ADDRS);
+   pc->MaxNativeParameters      = screen->get_param(screen, PIPE_CAP_MAX_VS_CONSTS);
 }
 
 
-- 
1.7.0.3


--=-m3vy/wH2tlAFKIHzTTPF--



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