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-rw-r--r--src/mesa/main/arbprogram.c5
-rw-r--r--src/mesa/main/context.c3
-rw-r--r--src/mesa/main/enable.c2
-rw-r--r--src/mesa/main/mtypes.h24
-rw-r--r--src/mesa/main/pipelineobj.c3
-rw-r--r--src/mesa/main/shaderapi.c5
-rw-r--r--src/mesa/main/state.c23
-rw-r--r--src/mesa/main/state.h7
8 files changed, 72 insertions, 0 deletions
diff --git a/src/mesa/main/arbprogram.c b/src/mesa/main/arbprogram.c
index 625dc667f80..b169bce0c57 100644
--- a/src/mesa/main/arbprogram.c
+++ b/src/mesa/main/arbprogram.c
@@ -37,6 +37,7 @@
#include "main/mtypes.h"
#include "main/arbprogram.h"
#include "main/shaderapi.h"
+#include "main/state.h"
#include "program/arbprogparse.h"
#include "program/program.h"
#include "program/prog_print.h"
@@ -133,6 +134,8 @@ _mesa_BindProgramARB(GLenum target, GLuint id)
_mesa_reference_program(ctx, &ctx->FragmentProgram.Current, newProg);
}
+ _mesa_update_vertex_processing_mode(ctx);
+
/* Never null pointers */
assert(ctx->VertexProgram.Current);
assert(ctx->FragmentProgram.Current);
@@ -369,6 +372,8 @@ _mesa_ProgramStringARB(GLenum target, GLenum format, GLsizei len,
}
}
+ _mesa_update_vertex_processing_mode(ctx);
+
if (ctx->_Shader->Flags & GLSL_DUMP) {
const char *shader_type =
target == GL_FRAGMENT_PROGRAM_ARB ? "fragment" : "vertex";
diff --git a/src/mesa/main/context.c b/src/mesa/main/context.c
index 79d3e39e922..0aa2e3639f0 100644
--- a/src/mesa/main/context.c
+++ b/src/mesa/main/context.c
@@ -123,6 +123,7 @@
#include "shared.h"
#include "shaderobj.h"
#include "shaderimage.h"
+#include "state.h"
#include "util/debug.h"
#include "util/disk_cache.h"
#include "util/strtod.h"
@@ -1579,6 +1580,8 @@ handle_first_current(struct gl_context *ctx)
check_context_limits(ctx);
+ _mesa_update_vertex_processing_mode(ctx);
+
/* According to GL_MESA_configless_context the default value of
* glDrawBuffers depends on the config of the first surface it is bound to.
* For GLES it is always GL_BACK which has a magic interpretation.
diff --git a/src/mesa/main/enable.c b/src/mesa/main/enable.c
index f23673a6cdc..868b73ac68b 100644
--- a/src/mesa/main/enable.c
+++ b/src/mesa/main/enable.c
@@ -39,6 +39,7 @@
#include "light.h"
#include "mtypes.h"
#include "enums.h"
+#include "state.h"
#include "texstate.h"
#include "varray.h"
@@ -919,6 +920,7 @@ _mesa_set_enable(struct gl_context *ctx, GLenum cap, GLboolean state)
return;
FLUSH_VERTICES(ctx, _NEW_PROGRAM);
ctx->VertexProgram.Enabled = state;
+ _mesa_update_vertex_processing_mode(ctx);
break;
case GL_VERTEX_PROGRAM_POINT_SIZE_ARB:
/* This was added with ARB_vertex_program, but it is also used with
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index 7da3240da78..41df04d38d4 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -2137,6 +2137,19 @@ typedef enum
/**
+ * Current vertex processing mode: fixed function vs. shader.
+ * In reality, fixed function is probably implemented by a shader but that's
+ * not what we care about here.
+ */
+typedef enum
+{
+ VP_MODE_FF, /**< legacy / fixed function */
+ VP_MODE_SHADER, /**< ARB vertex program or GLSL vertex shader */
+ VP_MODE_MAX /**< for sizing arrays */
+} gl_vertex_processing_mode;
+
+
+/**
* Base class for any kind of program object
*/
struct gl_program
@@ -2362,6 +2375,17 @@ struct gl_vertex_program_state
struct gl_program_cache *Cache;
GLboolean _Overriden;
+
+ /**
+ * If we have a vertex program, a TNL program or no program at all.
+ * Note that this value should be kept up to date all the time,
+ * nevertheless its correctness is asserted in _mesa_update_state.
+ * The reason is to avoid calling _mesa_update_state twice we need
+ * this value on draw *before* actually calling _mesa_update_state.
+ * Also it should need to get recomputed only on changes to the
+ * vertex program which are heavyweight already.
+ */
+ gl_vertex_processing_mode _VPMode;
};
/**
diff --git a/src/mesa/main/pipelineobj.c b/src/mesa/main/pipelineobj.c
index d7d99ec22d8..438f75bc74f 100644
--- a/src/mesa/main/pipelineobj.c
+++ b/src/mesa/main/pipelineobj.c
@@ -41,6 +41,7 @@
#include "main/pipelineobj.h"
#include "main/shaderapi.h"
#include "main/shaderobj.h"
+#include "main/state.h"
#include "main/transformfeedback.h"
#include "main/uniforms.h"
#include "compiler/glsl/glsl_parser_extras.h"
@@ -532,6 +533,8 @@ _mesa_bind_pipeline(struct gl_context *ctx,
_mesa_program_init_subroutine_defaults(ctx, prog);
}
}
+
+ _mesa_update_vertex_processing_mode(ctx);
}
}
diff --git a/src/mesa/main/shaderapi.c b/src/mesa/main/shaderapi.c
index d0d2ef9a0f0..d8a3031a386 100644
--- a/src/mesa/main/shaderapi.c
+++ b/src/mesa/main/shaderapi.c
@@ -50,6 +50,7 @@
#include "main/program_binary.h"
#include "main/shaderapi.h"
#include "main/shaderobj.h"
+#include "main/state.h"
#include "main/transformfeedback.h"
#include "main/uniforms.h"
#include "compiler/glsl/glsl_parser_extras.h"
@@ -1258,6 +1259,8 @@ link_program(struct gl_context *ctx, struct gl_shader_program *shProg,
shProg->Name, shProg->data->InfoLog);
}
+ _mesa_update_vertex_processing_mode(ctx);
+
/* debug code */
if (0) {
GLuint i;
@@ -2432,6 +2435,8 @@ _mesa_use_program(struct gl_context *ctx, gl_shader_stage stage,
&shTarget->ReferencedPrograms[stage],
shProg);
_mesa_reference_program(ctx, target, prog);
+ if (stage == MESA_SHADER_VERTEX)
+ _mesa_update_vertex_processing_mode(ctx);
return;
}
diff --git a/src/mesa/main/state.c b/src/mesa/main/state.c
index df694d09092..2fd4fb9d323 100644
--- a/src/mesa/main/state.c
+++ b/src/mesa/main/state.c
@@ -177,15 +177,18 @@ update_program(struct gl_context *ctx)
*/
if (vsProg) {
/* Use GLSL vertex shader */
+ assert(VP_MODE_SHADER == ctx->VertexProgram._VPMode);
_mesa_reference_program(ctx, &ctx->VertexProgram._Current, vsProg);
}
else if (_mesa_arb_vertex_program_enabled(ctx)) {
/* Use user-defined vertex program */
+ assert(VP_MODE_SHADER == ctx->VertexProgram._VPMode);
_mesa_reference_program(ctx, &ctx->VertexProgram._Current,
ctx->VertexProgram.Current);
}
else if (ctx->VertexProgram._MaintainTnlProgram) {
/* Use vertex program generated from fixed-function state */
+ assert(VP_MODE_FF == ctx->VertexProgram._VPMode);
_mesa_reference_program(ctx, &ctx->VertexProgram._Current,
_mesa_get_fixed_func_vertex_program(ctx));
_mesa_reference_program(ctx, &ctx->VertexProgram._TnlProgram,
@@ -193,6 +196,7 @@ update_program(struct gl_context *ctx)
}
else {
/* no vertex program */
+ assert(VP_MODE_FF == ctx->VertexProgram._VPMode);
_mesa_reference_program(ctx, &ctx->VertexProgram._Current, NULL);
}
@@ -456,3 +460,22 @@ _mesa_set_vp_override(struct gl_context *ctx, GLboolean flag)
ctx->NewState |= _NEW_PROGRAM;
}
}
+
+
+/**
+ * Update ctx->VertexProgram._VPMode.
+ * This is to distinguish whether we're running
+ * a vertex program/shader,
+ * a fixed-function TNL program or
+ * a fixed function vertex transformation without any program.
+ */
+void
+_mesa_update_vertex_processing_mode(struct gl_context *ctx)
+{
+ if (ctx->_Shader->CurrentProgram[MESA_SHADER_VERTEX])
+ ctx->VertexProgram._VPMode = VP_MODE_SHADER;
+ else if (_mesa_arb_vertex_program_enabled(ctx))
+ ctx->VertexProgram._VPMode = VP_MODE_SHADER;
+ else
+ ctx->VertexProgram._VPMode = VP_MODE_FF;
+}
diff --git a/src/mesa/main/state.h b/src/mesa/main/state.h
index 5814c659a31..049166578c2 100644
--- a/src/mesa/main/state.h
+++ b/src/mesa/main/state.h
@@ -46,6 +46,13 @@ extern void
_mesa_set_vp_override(struct gl_context *ctx, GLboolean flag);
+/**
+ * Update ctx->VertexProgram._VertexProgramMode.
+ */
+extern void
+_mesa_update_vertex_processing_mode(struct gl_context *ctx);
+
+
static inline bool
_mesa_ati_fragment_shader_enabled(const struct gl_context *ctx)
{
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-18 13:21:14 +0000