diff options
Diffstat (limited to 'src/mesa/program/prog_execute.c')
| -rw-r--r-- | src/mesa/program/prog_execute.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/src/mesa/program/prog_execute.c b/src/mesa/program/prog_execute.c index e7553c69dbe..77f842a1630 100644 --- a/src/mesa/program/prog_execute.c +++ b/src/mesa/program/prog_execute.c @@ -157,7 +157,7 @@ get_src_register_pointer(const struct prog_src_register *source, case PROGRAM_NAMED_PARAM: if (reg >= (GLint) prog->Parameters->NumParameters) return ZeroVec; - return prog->Parameters->ParameterValues[reg]; + return (GLfloat *) prog->Parameters->ParameterValues[reg]; case PROGRAM_SYSTEM_VALUE: assert(reg < Elements(machine->SystemValues)); @@ -639,7 +639,7 @@ _mesa_execute_program(struct gl_context * ctx, struct gl_program_machine *machine) { const GLuint numInst = program->NumInstructions; - const GLuint maxExec = 10000; + const GLuint maxExec = 65536; GLuint pc, numExec = 0; machine->CurProgram = program; @@ -1651,6 +1651,14 @@ _mesa_execute_program(struct gl_context * ctx, GLfloat texcoord[4], color[4]; fetch_vector4(&inst->SrcReg[0], machine, texcoord); + /* For TEX, texcoord.Q should not be used and its value should not + * matter (at most, we pass coord.xyz to texture3D() in GLSL). + * Set Q=1 so that FetchTexelDeriv() doesn't get a garbage value + * which is effectively what happens when the texcoord swizzle + * is .xyzz + */ + texcoord[3] = 1.0f; + fetch_texel(ctx, machine, inst, texcoord, 0.0, color); if (DEBUG_PROG) { |