Mesa (master): glsl: move predefined shader input/output info/ code to slang_builtin.c
Brian Paul
brianp at kemper.freedesktop.org
Wed Aug 12 18:43:04 UTC 2009
Module: Mesa
Branch: master
Commit: fd5eda1423dff38ea1af589f7abd47b002a4f5ed
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=fd5eda1423dff38ea1af589f7abd47b002a4f5ed
Author: Brian Paul <brianp at vmware.com>
Date: Wed Aug 12 12:27:35 2009 -0600
glsl: move predefined shader input/output info/code to slang_builtin.c
This is a more logical place for this code.
Also add some functions for querying vertex shader input names, types, etc.
---
src/mesa/shader/slang/slang_builtin.c | 183 +++++++++++++++++++++++++++++++++
src/mesa/shader/slang/slang_builtin.h | 14 +++
src/mesa/shader/slang/slang_codegen.c | 104 +------------------
src/mesa/shader/slang/slang_link.c | 1 +
4 files changed, 199 insertions(+), 103 deletions(-)
diff --git a/src/mesa/shader/slang/slang_builtin.c b/src/mesa/shader/slang/slang_builtin.c
index 289d946..5721e9b 100644
--- a/src/mesa/shader/slang/slang_builtin.c
+++ b/src/mesa/shader/slang/slang_builtin.c
@@ -710,3 +710,186 @@ _slang_alloc_statevar(slang_ir_node *n,
*direct = GL_FALSE;
return alloc_state_var_array(n->Var, paramList);
}
+
+
+
+
+#define SWIZZLE_ZWWW MAKE_SWIZZLE4(SWIZZLE_Z, SWIZZLE_W, SWIZZLE_W, SWIZZLE_W)
+
+
+/** Predefined shader inputs */
+struct input_info
+{
+ const char *Name;
+ GLuint Attrib;
+ GLenum Type;
+ GLuint Swizzle;
+};
+
+/** Predefined vertex shader inputs/attributes */
+static const struct input_info vertInputs[] = {
+ { "gl_Vertex", VERT_ATTRIB_POS, GL_FLOAT_VEC4, SWIZZLE_NOOP },
+ { "gl_Normal", VERT_ATTRIB_NORMAL, GL_FLOAT_VEC3, SWIZZLE_NOOP },
+ { "gl_Color", VERT_ATTRIB_COLOR0, GL_FLOAT_VEC4, SWIZZLE_NOOP },
+ { "gl_SecondaryColor", VERT_ATTRIB_COLOR1, GL_FLOAT_VEC4, SWIZZLE_NOOP },
+ { "gl_FogCoord", VERT_ATTRIB_FOG, GL_FLOAT, SWIZZLE_XXXX },
+ { "gl_MultiTexCoord0", VERT_ATTRIB_TEX0, GL_FLOAT_VEC4, SWIZZLE_NOOP },
+ { "gl_MultiTexCoord1", VERT_ATTRIB_TEX1, GL_FLOAT_VEC4, SWIZZLE_NOOP },
+ { "gl_MultiTexCoord2", VERT_ATTRIB_TEX2, GL_FLOAT_VEC4, SWIZZLE_NOOP },
+ { "gl_MultiTexCoord3", VERT_ATTRIB_TEX3, GL_FLOAT_VEC4, SWIZZLE_NOOP },
+ { "gl_MultiTexCoord4", VERT_ATTRIB_TEX4, GL_FLOAT_VEC4, SWIZZLE_NOOP },
+ { "gl_MultiTexCoord5", VERT_ATTRIB_TEX5, GL_FLOAT_VEC4, SWIZZLE_NOOP },
+ { "gl_MultiTexCoord6", VERT_ATTRIB_TEX6, GL_FLOAT_VEC4, SWIZZLE_NOOP },
+ { "gl_MultiTexCoord7", VERT_ATTRIB_TEX7, GL_FLOAT_VEC4, SWIZZLE_NOOP },
+ { NULL, 0, SWIZZLE_NOOP }
+};
+
+/** Predefined fragment shader inputs */
+static const struct input_info fragInputs[] = {
+ { "gl_FragCoord", FRAG_ATTRIB_WPOS, GL_FLOAT_VEC4, SWIZZLE_NOOP },
+ { "gl_Color", FRAG_ATTRIB_COL0, GL_FLOAT_VEC4, SWIZZLE_NOOP },
+ { "gl_SecondaryColor", FRAG_ATTRIB_COL1, GL_FLOAT_VEC4, SWIZZLE_NOOP },
+ { "gl_TexCoord", FRAG_ATTRIB_TEX0, GL_FLOAT_VEC4, SWIZZLE_NOOP },
+ /* note: we're packing several quantities into the fogcoord vector */
+ { "gl_FogFragCoord", FRAG_ATTRIB_FOGC, GL_FLOAT, SWIZZLE_XXXX },
+ { "gl_FrontFacing", FRAG_ATTRIB_FOGC, GL_BOOL, SWIZZLE_YYYY }, /*XXX*/
+ { "gl_PointCoord", FRAG_ATTRIB_FOGC, GL_FLOAT_VEC2, SWIZZLE_ZWWW },
+ { NULL, 0, SWIZZLE_NOOP }
+};
+
+
+/**
+ * Return the VERT_ATTRIB_* or FRAG_ATTRIB_* value that corresponds to
+ * a vertex or fragment program input variable. Return -1 if the input
+ * name is invalid.
+ * XXX return size too
+ */
+GLint
+_slang_input_index(const char *name, GLenum target, GLuint *swizzleOut)
+{
+ const struct input_info *inputs;
+ GLuint i;
+
+ switch (target) {
+ case GL_VERTEX_PROGRAM_ARB:
+ inputs = vertInputs;
+ break;
+ case GL_FRAGMENT_PROGRAM_ARB:
+ inputs = fragInputs;
+ break;
+ /* XXX geom program */
+ default:
+ _mesa_problem(NULL, "bad target in _slang_input_index");
+ return -1;
+ }
+
+ ASSERT(MAX_TEXTURE_COORD_UNITS == 8); /* if this fails, fix vertInputs above */
+
+ for (i = 0; inputs[i].Name; i++) {
+ if (strcmp(inputs[i].Name, name) == 0) {
+ /* found */
+ *swizzleOut = inputs[i].Swizzle;
+ return inputs[i].Attrib;
+ }
+ }
+ return -1;
+}
+
+
+/**
+ * Return name of the given vertex attribute (VERT_ATTRIB_x).
+ */
+const char *
+_slang_vert_attrib_name(GLuint attrib)
+{
+ GLuint i;
+ assert(attrib < VERT_ATTRIB_GENERIC0);
+ for (i = 0; vertInputs[i].Name; i++) {
+ if (vertInputs[i].Attrib == attrib)
+ return vertInputs[i].Name;
+ }
+ return NULL;
+}
+
+
+/**
+ * Return type (GL_FLOAT, GL_FLOAT_VEC2, etc) of the given vertex
+ * attribute (VERT_ATTRIB_x).
+ */
+GLenum
+_slang_vert_attrib_type(GLuint attrib)
+{
+ GLuint i;
+ assert(attrib < VERT_ATTRIB_GENERIC0);
+ for (i = 0; vertInputs[i].Name; i++) {
+ if (vertInputs[i].Attrib == attrib)
+ return vertInputs[i].Type;
+ }
+ return GL_NONE;
+}
+
+
+
+
+
+/** Predefined shader output info */
+struct output_info
+{
+ const char *Name;
+ GLuint Attrib;
+};
+
+/** Predefined vertex shader outputs */
+static const struct output_info vertOutputs[] = {
+ { "gl_Position", VERT_RESULT_HPOS },
+ { "gl_FrontColor", VERT_RESULT_COL0 },
+ { "gl_BackColor", VERT_RESULT_BFC0 },
+ { "gl_FrontSecondaryColor", VERT_RESULT_COL1 },
+ { "gl_BackSecondaryColor", VERT_RESULT_BFC1 },
+ { "gl_TexCoord", VERT_RESULT_TEX0 },
+ { "gl_FogFragCoord", VERT_RESULT_FOGC },
+ { "gl_PointSize", VERT_RESULT_PSIZ },
+ { NULL, 0 }
+};
+
+/** Predefined fragment shader outputs */
+static const struct output_info fragOutputs[] = {
+ { "gl_FragColor", FRAG_RESULT_COLOR },
+ { "gl_FragDepth", FRAG_RESULT_DEPTH },
+ { "gl_FragData", FRAG_RESULT_DATA0 },
+ { NULL, 0 }
+};
+
+
+/**
+ * Return the VERT_RESULT_* or FRAG_RESULT_* value that corresponds to
+ * a vertex or fragment program output variable. Return -1 for an invalid
+ * output name.
+ */
+GLint
+_slang_output_index(const char *name, GLenum target)
+{
+ const struct output_info *outputs;
+ GLuint i;
+
+ switch (target) {
+ case GL_VERTEX_PROGRAM_ARB:
+ outputs = vertOutputs;
+ break;
+ case GL_FRAGMENT_PROGRAM_ARB:
+ outputs = fragOutputs;
+ break;
+ /* XXX geom program */
+ default:
+ _mesa_problem(NULL, "bad target in _slang_output_index");
+ return -1;
+ }
+
+ for (i = 0; outputs[i].Name; i++) {
+ if (strcmp(outputs[i].Name, name) == 0) {
+ /* found */
+ return outputs[i].Attrib;
+ }
+ }
+ return -1;
+}
diff --git a/src/mesa/shader/slang/slang_builtin.h b/src/mesa/shader/slang/slang_builtin.h
index 7f6fe80..f814d11 100644
--- a/src/mesa/shader/slang/slang_builtin.h
+++ b/src/mesa/shader/slang/slang_builtin.h
@@ -37,4 +37,18 @@ _slang_alloc_statevar(slang_ir_node *n,
GLboolean *direct);
+extern GLint
+_slang_input_index(const char *name, GLenum target, GLuint *swizzleOut);
+
+extern GLint
+_slang_output_index(const char *name, GLenum target);
+
+
+extern const char *
+_slang_vert_attrib_name(GLuint attrib);
+
+extern GLenum
+_slang_vert_attrib_type(GLuint attrib);
+
+
#endif /* SLANG_BUILTIN_H */
diff --git a/src/mesa/shader/slang/slang_codegen.c b/src/mesa/shader/slang/slang_codegen.c
index 2b7e781..349f432 100644
--- a/src/mesa/shader/slang/slang_codegen.c
+++ b/src/mesa/shader/slang/slang_codegen.c
@@ -46,6 +46,7 @@
#include "shader/prog_print.h"
#include "shader/prog_statevars.h"
#include "slang_typeinfo.h"
+#include "slang_builtin.h"
#include "slang_codegen.h"
#include "slang_compile.h"
#include "slang_label.h"
@@ -342,109 +343,6 @@ slang_operation_identifier(slang_operation *oper,
}
-#define SWIZZLE_ZWWW MAKE_SWIZZLE4(SWIZZLE_Z, SWIZZLE_W, SWIZZLE_W, SWIZZLE_W)
-
-/**
- * Return the VERT_ATTRIB_* or FRAG_ATTRIB_* value that corresponds to
- * a vertex or fragment program input variable. Return -1 if the input
- * name is invalid.
- * XXX return size too
- */
-static GLint
-_slang_input_index(const char *name, GLenum target, GLuint *swizzleOut)
-{
- struct input_info {
- const char *Name;
- GLuint Attrib;
- GLuint Swizzle;
- };
- static const struct input_info vertInputs[] = {
- { "gl_Vertex", VERT_ATTRIB_POS, SWIZZLE_NOOP },
- { "gl_Normal", VERT_ATTRIB_NORMAL, SWIZZLE_NOOP },
- { "gl_Color", VERT_ATTRIB_COLOR0, SWIZZLE_NOOP },
- { "gl_SecondaryColor", VERT_ATTRIB_COLOR1, SWIZZLE_NOOP },
- { "gl_FogCoord", VERT_ATTRIB_FOG, SWIZZLE_XXXX },
- { "gl_MultiTexCoord0", VERT_ATTRIB_TEX0, SWIZZLE_NOOP },
- { "gl_MultiTexCoord1", VERT_ATTRIB_TEX1, SWIZZLE_NOOP },
- { "gl_MultiTexCoord2", VERT_ATTRIB_TEX2, SWIZZLE_NOOP },
- { "gl_MultiTexCoord3", VERT_ATTRIB_TEX3, SWIZZLE_NOOP },
- { "gl_MultiTexCoord4", VERT_ATTRIB_TEX4, SWIZZLE_NOOP },
- { "gl_MultiTexCoord5", VERT_ATTRIB_TEX5, SWIZZLE_NOOP },
- { "gl_MultiTexCoord6", VERT_ATTRIB_TEX6, SWIZZLE_NOOP },
- { "gl_MultiTexCoord7", VERT_ATTRIB_TEX7, SWIZZLE_NOOP },
- { NULL, 0, SWIZZLE_NOOP }
- };
- static const struct input_info fragInputs[] = {
- { "gl_FragCoord", FRAG_ATTRIB_WPOS, SWIZZLE_NOOP },
- { "gl_Color", FRAG_ATTRIB_COL0, SWIZZLE_NOOP },
- { "gl_SecondaryColor", FRAG_ATTRIB_COL1, SWIZZLE_NOOP },
- { "gl_TexCoord", FRAG_ATTRIB_TEX0, SWIZZLE_NOOP },
- /* note: we're packing several quantities into the fogcoord vector */
- { "gl_FogFragCoord", FRAG_ATTRIB_FOGC, SWIZZLE_XXXX },
- { "gl_FrontFacing", FRAG_ATTRIB_FOGC, SWIZZLE_YYYY }, /*XXX*/
- { "gl_PointCoord", FRAG_ATTRIB_FOGC, SWIZZLE_ZWWW },
- { NULL, 0, SWIZZLE_NOOP }
- };
- GLuint i;
- const struct input_info *inputs
- = (target == GL_VERTEX_PROGRAM_ARB) ? vertInputs : fragInputs;
-
- ASSERT(MAX_TEXTURE_COORD_UNITS == 8); /* if this fails, fix vertInputs above */
-
- for (i = 0; inputs[i].Name; i++) {
- if (strcmp(inputs[i].Name, name) == 0) {
- /* found */
- *swizzleOut = inputs[i].Swizzle;
- return inputs[i].Attrib;
- }
- }
- return -1;
-}
-
-
-/**
- * Return the VERT_RESULT_* or FRAG_RESULT_* value that corresponds to
- * a vertex or fragment program output variable. Return -1 for an invalid
- * output name.
- */
-static GLint
-_slang_output_index(const char *name, GLenum target)
-{
- struct output_info {
- const char *Name;
- GLuint Attrib;
- };
- static const struct output_info vertOutputs[] = {
- { "gl_Position", VERT_RESULT_HPOS },
- { "gl_FrontColor", VERT_RESULT_COL0 },
- { "gl_BackColor", VERT_RESULT_BFC0 },
- { "gl_FrontSecondaryColor", VERT_RESULT_COL1 },
- { "gl_BackSecondaryColor", VERT_RESULT_BFC1 },
- { "gl_TexCoord", VERT_RESULT_TEX0 },
- { "gl_FogFragCoord", VERT_RESULT_FOGC },
- { "gl_PointSize", VERT_RESULT_PSIZ },
- { NULL, 0 }
- };
- static const struct output_info fragOutputs[] = {
- { "gl_FragColor", FRAG_RESULT_COLOR },
- { "gl_FragDepth", FRAG_RESULT_DEPTH },
- { "gl_FragData", FRAG_RESULT_DATA0 },
- { NULL, 0 }
- };
- GLuint i;
- const struct output_info *outputs
- = (target == GL_VERTEX_PROGRAM_ARB) ? vertOutputs : fragOutputs;
-
- for (i = 0; outputs[i].Name; i++) {
- if (strcmp(outputs[i].Name, name) == 0) {
- /* found */
- return outputs[i].Attrib;
- }
- }
- return -1;
-}
-
-
/**
* Called when we begin code/IR generation for a new while/do/for loop.
*/
diff --git a/src/mesa/shader/slang/slang_link.c b/src/mesa/shader/slang/slang_link.c
index f6032d1..826bc3d 100644
--- a/src/mesa/shader/slang/slang_link.c
+++ b/src/mesa/shader/slang/slang_link.c
@@ -40,6 +40,7 @@
#include "shader/prog_statevars.h"
#include "shader/prog_uniform.h"
#include "shader/shader_api.h"
+#include "slang_builtin.h"
#include "slang_link.h"
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