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authorAnuj Phogat <[email protected]>2013-10-02 18:02:20 -0700
committerAnuj Phogat <[email protected]>2013-11-01 16:01:47 -0700
commit0d69e8c813070696942ffbe6efa4dc5186422199 (patch)
treec08b4002383f51097c500dd0f7475da856f7515b
parent77b440e42d8e7247c22959020bb087c63d298f2e (diff)
mesa: Pass number of samples as a program state variable
Number of samples will be required in fragment shader program by new GLSL builtin uniform "gl_NumSamples". V2: Use "state.numsamples" in place of "state.num.samples" Use _NEW_BUFFERS flag in place of _NEW_MULTISAMPLE Signed-off-by: Anuj Phogat <[email protected]> Reviewed-by: Ian Romanick <[email protected]> Reviewed-by: Ken Graunke <[email protected]> Reviewed-by: Paul Berry <[email protected]>
-rw-r--r--src/mesa/program/prog_statevars.c11
-rw-r--r--src/mesa/program/prog_statevars.h2
2 files changed, 13 insertions, 0 deletions
diff --git a/src/mesa/program/prog_statevars.c b/src/mesa/program/prog_statevars.c
index 145c07c6767..f6fd53576c1 100644
--- a/src/mesa/program/prog_statevars.c
+++ b/src/mesa/program/prog_statevars.c
@@ -349,6 +349,9 @@ _mesa_fetch_state(struct gl_context *ctx, const gl_state_index state[],
}
}
return;
+ case STATE_NUM_SAMPLES:
+ ((int *)value)[0] = ctx->DrawBuffer->Visual.samples;
+ return;
case STATE_DEPTH_RANGE:
value[0] = ctx->Viewport.Near; /* near */
value[1] = ctx->Viewport.Far; /* far */
@@ -665,6 +668,9 @@ _mesa_program_state_flags(const gl_state_index state[STATE_LENGTH])
case STATE_PROGRAM_MATRIX:
return _NEW_TRACK_MATRIX;
+ case STATE_NUM_SAMPLES:
+ return _NEW_BUFFERS;
+
case STATE_DEPTH_RANGE:
return _NEW_VIEWPORT;
@@ -852,6 +858,9 @@ append_token(char *dst, gl_state_index k)
case STATE_TEXENV_COLOR:
append(dst, "texenv");
break;
+ case STATE_NUM_SAMPLES:
+ append(dst, "numsamples");
+ break;
case STATE_DEPTH_RANGE:
append(dst, "depth.range");
break;
@@ -1027,6 +1036,8 @@ _mesa_program_state_string(const gl_state_index state[STATE_LENGTH])
break;
case STATE_FOG_COLOR:
break;
+ case STATE_NUM_SAMPLES:
+ break;
case STATE_DEPTH_RANGE:
break;
case STATE_FRAGMENT_PROGRAM:
diff --git a/src/mesa/program/prog_statevars.h b/src/mesa/program/prog_statevars.h
index ec22b7376de..23a9f48c32f 100644
--- a/src/mesa/program/prog_statevars.h
+++ b/src/mesa/program/prog_statevars.h
@@ -103,6 +103,8 @@ typedef enum gl_state_index_ {
STATE_TEXENV_COLOR,
+ STATE_NUM_SAMPLES, /* An integer, not a float like the other state vars */
+
STATE_DEPTH_RANGE,
STATE_VERTEX_PROGRAM,