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-rw-r--r--src/mesa/main/config.h2
-rw-r--r--src/mesa/shader/prog_instruction.h16
-rw-r--r--src/mesa/shader/program.c9
3 files changed, 22 insertions, 5 deletions
diff --git a/src/mesa/main/config.h b/src/mesa/main/config.h
index 9d0cd18e05f..7044b61e4ad 100644
--- a/src/mesa/main/config.h
+++ b/src/mesa/main/config.h
@@ -189,7 +189,7 @@
#define MAX_PROGRAM_CALL_DEPTH 8
#define MAX_PROGRAM_TEMPS 128
#define MAX_PROGRAM_ADDRESS_REGS 2
-#define MAX_UNIFORMS 256 /**< number of vec4 uniforms */
+#define MAX_UNIFORMS 1024 /**< number of vec4 uniforms */
#define MAX_VARYING 8 /**< number of float[4] vectors */
#define MAX_SAMPLERS MAX_TEXTURE_IMAGE_UNITS
#define MAX_PROGRAM_INPUTS 32
diff --git a/src/mesa/shader/prog_instruction.h b/src/mesa/shader/prog_instruction.h
index c649b3db5ee..48e7b04c98c 100644
--- a/src/mesa/shader/prog_instruction.h
+++ b/src/mesa/shader/prog_instruction.h
@@ -240,12 +240,21 @@ typedef enum prog_opcode {
/**
+ * Number of bits for the src/dst register Index field.
+ * This limits the size of temp/uniform register files.
+ */
+#define INST_INDEX_BITS 10
+
+
+/**
* Instruction source register.
*/
struct prog_src_register
{
GLuint File:4; /**< One of the PROGRAM_* register file values. */
- GLint Index:9; /**< May be negative for relative addressing. */
+ GLint Index:(INST_INDEX_BITS+1); /**< Extra bit here for sign bit.
+ * May be negative for relative addressing.
+ */
GLuint Swizzle:12;
GLuint RelAddr:1;
@@ -289,7 +298,7 @@ struct prog_src_register
struct prog_dst_register
{
GLuint File:4; /**< One of the PROGRAM_* register file values */
- GLuint Index:8;
+ GLuint Index:INST_INDEX_BITS; /**< Unsigned, never negative */
GLuint WriteMask:4;
GLuint RelAddr:1;
@@ -322,8 +331,7 @@ struct prog_dst_register
*/
GLuint CondSrc:1;
/*@}*/
-
- GLuint pad:30;
+ GLuint pad:28;
};
diff --git a/src/mesa/shader/program.c b/src/mesa/shader/program.c
index 7a3b827352a..00655f0288a 100644
--- a/src/mesa/shader/program.c
+++ b/src/mesa/shader/program.c
@@ -53,6 +53,15 @@ _mesa_init_program(GLcontext *ctx)
{
GLuint i;
+ /*
+ * If this assertion fails, we need to increase the field
+ * size for register indexes.
+ */
+ ASSERT(ctx->Const.VertexProgram.MaxUniformComponents / 4
+ <= (1 << INST_INDEX_BITS));
+ ASSERT(ctx->Const.FragmentProgram.MaxUniformComponents / 4
+ <= (1 << INST_INDEX_BITS));
+
ctx->Program.ErrorPos = -1;
ctx->Program.ErrorString = _mesa_strdup("");