Mesa (master): mesa: add new internal state var for window size
Brian Paul
brianp at kemper.freedesktop.org
Sat Mar 21 02:31:30 UTC 2009
Module: Mesa
Branch: master
Commit: 1f45ae0813f72fa92f52e0ebc440922362dc7cce
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=1f45ae0813f72fa92f52e0ebc440922362dc7cce
Author: Brian Paul <brianp at vmware.com>
Date: Fri Mar 20 20:15:58 2009 -0600
mesa: add new internal state var for window size
Actually, window width - 1, height - 1
---
src/mesa/shader/prog_statevars.c | 13 +++++++++++++
src/mesa/shader/prog_statevars.h | 1 +
2 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/src/mesa/shader/prog_statevars.c b/src/mesa/shader/prog_statevars.c
index f51d9e2..aeb7cf6 100644
--- a/src/mesa/shader/prog_statevars.c
+++ b/src/mesa/shader/prog_statevars.c
@@ -506,6 +506,13 @@ _mesa_fetch_state(GLcontext *ctx, const gl_state_index state[],
}
}
return;
+ case STATE_FB_SIZE:
+ value[0] = (GLfloat) (ctx->DrawBuffer->Width - 1);
+ value[1] = (GLfloat) (ctx->DrawBuffer->Height - 1);
+ value[2] = 0.0F;
+ value[3] = 0.0F;
+ return;
+
case STATE_ROT_MATRIX_0:
{
const int unit = (int) state[2];
@@ -628,6 +635,9 @@ _mesa_program_state_flags(const gl_state_index state[STATE_LENGTH])
case STATE_PCM_BIAS:
return _NEW_PIXEL;
+ case STATE_FB_SIZE:
+ return _NEW_BUFFERS;
+
default:
/* unknown state indexes are silently ignored and
* no flag set, since it is handled by the driver.
@@ -828,6 +838,9 @@ append_token(char *dst, gl_state_index k)
case STATE_SHADOW_AMBIENT:
append(dst, "CompareFailValue");
break;
+ case STATE_FB_SIZE:
+ append(dst, "FbSize");
+ break;
case STATE_ROT_MATRIX_0:
append(dst, "rotMatrixRow0");
break;
diff --git a/src/mesa/shader/prog_statevars.h b/src/mesa/shader/prog_statevars.h
index d563080..1180d9e 100644
--- a/src/mesa/shader/prog_statevars.h
+++ b/src/mesa/shader/prog_statevars.h
@@ -117,6 +117,7 @@ typedef enum gl_state_index_ {
STATE_PCM_SCALE, /**< Post color matrix RGBA scale */
STATE_PCM_BIAS, /**< Post color matrix RGBA bias */
STATE_SHADOW_AMBIENT, /**< ARB_shadow_ambient fail value; token[2] is texture unit index */
+ STATE_FB_SIZE, /**< (width-1, height-1, 0, 0) */
STATE_ROT_MATRIX_0, /**< ATI_envmap_bumpmap, rot matrix row 0 */
STATE_ROT_MATRIX_1, /**< ATI_envmap_bumpmap, rot matrix row 1 */
STATE_INTERNAL_DRIVER /* first available state index for drivers (must be last) */
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