/*
* Mesa 3-D graphics library
- * Version: 7.1
+ * Version: 7.3
*
* Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
*
/*
* Set the ctx->VertexProgram._Current and ctx->FragmentProgram._Current
- * pointers to the programs that should be enabled/used. These will only
- * be NULL if we need to use the fixed-function code.
+ * pointers to the programs that should be used for rendering. If either
+ * is NULL, use fixed-function code paths.
*
* These programs may come from several sources. The priority is as
* follows:
* come up, or matter.
*/
- _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current, NULL);
-
- if (shProg && shProg->LinkStatus) {
+ if (shProg && shProg->LinkStatus && shProg->FragmentProgram) {
/* Use shader programs */
- /* XXX this isn't quite right, since we may have either a vertex
- * _or_ fragment shader (not always both).
- */
- _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current,
- shProg->VertexProgram);
_mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current,
shProg->FragmentProgram);
}
- else {
- if (ctx->FragmentProgram._Enabled) {
- /* use user-defined vertex program */
- _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current,
- ctx->FragmentProgram.Current);
- }
- else if (ctx->FragmentProgram._MaintainTexEnvProgram) {
- /* Use fragment program generated from fixed-function state.
- */
- _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current,
- _mesa_get_fixed_func_fragment_program(ctx));
- _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._TexEnvProgram,
- ctx->FragmentProgram._Current);
- }
- else {
- /* no fragment program */
- _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current, NULL);
- }
-
- /* Examine vertex program after fragment program as
- * _mesa_get_fixed_func_vertex_program() needs to know active
- * fragprog inputs.
+ else if (ctx->FragmentProgram._Enabled) {
+ /* use user-defined vertex program */
+ _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current,
+ ctx->FragmentProgram.Current);
+ }
+ else if (ctx->FragmentProgram._MaintainTexEnvProgram) {
+ /* Use fragment program generated from fixed-function state.
*/
- if (ctx->VertexProgram._Enabled) {
- /* use user-defined vertex program */
- _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current,
- ctx->VertexProgram.Current);
- }
- else if (ctx->VertexProgram._MaintainTnlProgram) {
- /* Use vertex program generated from fixed-function state.
- */
- _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current,
- _mesa_get_fixed_func_vertex_program(ctx));
- _mesa_reference_vertprog(ctx, &ctx->VertexProgram._TnlProgram,
- ctx->VertexProgram._Current);
- }
- else {
- /* no vertex program */
- _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current, NULL);
- }
+ _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current,
+ _mesa_get_fixed_func_fragment_program(ctx));
+ _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._TexEnvProgram,
+ ctx->FragmentProgram._Current);
+ }
+ else {
+ /* no fragment program */
+ _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current, NULL);
}
- /* XXX: get rid of _Active flag.
+ /* Examine vertex program after fragment program as
+ * _mesa_get_fixed_func_vertex_program() needs to know active
+ * fragprog inputs.
*/
-#if 1
- ctx->FragmentProgram._Active = ctx->FragmentProgram._Enabled;
- if (ctx->FragmentProgram._MaintainTexEnvProgram &&
- !ctx->FragmentProgram._Enabled) {
- if (ctx->FragmentProgram._UseTexEnvProgram)
- ctx->FragmentProgram._Active = GL_TRUE;
+ if (shProg && shProg->LinkStatus && shProg->VertexProgram) {
+ /* Use shader programs */
+ _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current,
+ shProg->VertexProgram);
+ }
+ else if (ctx->VertexProgram._Enabled) {
+ /* use user-defined vertex program */
+ _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current,
+ ctx->VertexProgram.Current);
+ }
+ else if (ctx->VertexProgram._MaintainTnlProgram) {
+ /* Use vertex program generated from fixed-function state.
+ */
+ _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current,
+ _mesa_get_fixed_func_vertex_program(ctx));
+ _mesa_reference_vertprog(ctx, &ctx->VertexProgram._TnlProgram,
+ ctx->VertexProgram._Current);
+ }
+ else {
+ /* no vertex program */
+ _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current, NULL);
}
-#endif
/* Let the driver know what's happening:
*/
if (ctx->FragmentProgram._MaintainTexEnvProgram) {
prog_flags |= (_NEW_ARRAY | _NEW_TEXTURE_MATRIX | _NEW_LIGHT |
+ _NEW_RENDERMODE |
_NEW_TEXTURE | _NEW_FOG | _DD_NEW_SEPARATE_SPECULAR);
}
if (ctx->VertexProgram._MaintainTnlProgram) {
prog_flags |= (_NEW_ARRAY | _NEW_TEXTURE | _NEW_TEXTURE_MATRIX |
+ _NEW_RENDERMODE |
_NEW_TRANSFORM | _NEW_POINT |
_NEW_FOG | _NEW_LIGHT |
_MESA_NEW_NEED_EYE_COORDS);
-/* Want to figure out which fragment program inputs are actually
+/**
+ * Want to figure out which fragment program inputs are actually
* constant/current values from ctx->Current. These should be
* referenced as a tracked state variable rather than a fragment
* program input, to save the overhead of putting a constant value in
if (ctx->varying_vp_inputs != varying_inputs) {
ctx->varying_vp_inputs = varying_inputs;
ctx->NewState |= _NEW_ARRAY;
- //_mesa_printf("%s %x\n", __FUNCTION__, varying_inputs);
+ /*_mesa_printf("%s %x\n", __FUNCTION__, varying_inputs);*/
+ }
+}
+
+
+/**
+ * Used by drivers to tell core Mesa that the driver is going to
+ * install/ use its own vertex program. In particular, this will
+ * prevent generated fragment programs from using state vars instead
+ * of ordinary varyings/inputs.
+ */
+void
+_mesa_set_vp_override(GLcontext *ctx, GLboolean flag)
+{
+ if (ctx->VertexProgram._Overriden != flag) {
+ ctx->VertexProgram._Overriden = flag;
+
+ /* Set one of the bits which will trigger fragment program
+ * regeneration:
+ */
+ ctx->NewState |= _NEW_ARRAY;
}
}
projects / mesa.git / blobdiff