mesa: fix num_draw_buffers==0 in fixed-function fragment program generation

[mesa.git] / src / mesa / main / get.c

diff --git a/src/mesa/main/get.c b/src/mesa/main/get.c
index c8c0b8b4b1fe279514d490a1051a668a3e00693e..5d26f74bbc2609f22fe83b190a49930284c1a76b 100644 (file)
--- a/src/mesa/main/get.c
+++ b/src/mesa/main/get.c
@@ -29,6 +29,7 @@
 #include "extensions.h"
 #include "get.h"
 #include "macros.h"
+#include "mfeatures.h"
 #include "mtypes.h"
 #include "state.h"
 #include "texcompress.h"
@@ -314,6 +315,7 @@ EXTRA_EXT2(ARB_vertex_program, NV_vertex_program);
 EXTRA_EXT2(ARB_vertex_program, ARB_fragment_program);
 EXTRA_EXT(ARB_vertex_buffer_object);
 EXTRA_EXT(ARB_geometry_shader4);
+EXTRA_EXT(ARB_copy_buffer);
 
 static const int
 extra_ARB_vertex_program_ARB_fragment_program_NV_vertex_program[] = {
@@ -469,6 +471,10 @@ static const struct value_desc values[] = {
    { GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT, 0,
      extra_ARB_vertex_buffer_object },
 
+   /* GL_ARB_copy_buffer */
+   { GL_COPY_READ_BUFFER, LOC_CUSTOM, TYPE_INT, 0, extra_ARB_copy_buffer },
+   { GL_COPY_WRITE_BUFFER, LOC_CUSTOM, TYPE_INT, 0, extra_ARB_copy_buffer },
+
    /* GL_OES_read_format */
    { GL_IMPLEMENTATION_COLOR_READ_TYPE_OES, LOC_CUSTOM, TYPE_INT, 0,
      extra_new_buffers_OES_read_format },
@@ -1109,6 +1115,14 @@ static const struct value_desc values[] = {
      extra_valid_draw_buffer },
    { GL_DRAW_BUFFER3_ARB, BUFFER_ENUM(ColorDrawBuffer[3]),
      extra_valid_draw_buffer },
+   { GL_DRAW_BUFFER4_ARB, BUFFER_ENUM(ColorDrawBuffer[4]),
+     extra_valid_draw_buffer },
+   { GL_DRAW_BUFFER5_ARB, BUFFER_ENUM(ColorDrawBuffer[5]),
+     extra_valid_draw_buffer },
+   { GL_DRAW_BUFFER6_ARB, BUFFER_ENUM(ColorDrawBuffer[6]),
+     extra_valid_draw_buffer },
+   { GL_DRAW_BUFFER7_ARB, BUFFER_ENUM(ColorDrawBuffer[7]),
+     extra_valid_draw_buffer },
 
    /* GL_ATI_fragment_shader */
    { GL_NUM_FRAGMENT_REGISTERS_ATI, CONST(6), extra_ATI_fragment_shader },
@@ -1561,6 +1575,14 @@ find_custom_value(struct gl_context *ctx, const struct value_desc *d, union valu
       v->value_int = ctx->Array.ElementArrayBufferObj->Name;
       break;
 
+   /* ARB_copy_buffer */
+   case GL_COPY_READ_BUFFER:
+      v->value_int = ctx->CopyReadBuffer->Name;
+      break;
+   case GL_COPY_WRITE_BUFFER:
+      v->value_int = ctx->CopyWriteBuffer->Name;
+      break;
+
    case GL_FRAGMENT_PROGRAM_BINDING_NV:
       v->value_int = 
         ctx->FragmentProgram.Current ? ctx->FragmentProgram.Current->Base.Id : 0;
@@ -1738,16 +1760,18 @@ find_value(const char *func, GLenum pname, void **p, union value *v)
    hash = (pname * prime_factor);
    while (1) {
       d = &values[table[hash & mask]];
-      if (likely(d->pname == pname))
-        break;
 
       /* If the enum isn't valid, the hash walk ends with index 0,
        * which is the API mask entry at the beginning of values[]. */
-      if (d->type == TYPE_API_MASK) {
+      if (unlikely(d->type == TYPE_API_MASK)) {
         _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
                      _mesa_lookup_enum_by_nr(pname));
         return &error_value;
       }
+
+      if (likely(d->pname == pname))
+        break;
+
       hash += prime_step;
    }