nouveau: nv10: set projection matrix from viewport size

diff --git a/src/mesa/drivers/dri/nouveau/nv10_state.c b/src/mesa/drivers/dri/nouveau/nv10_state.c
index 1d2994e..5d512b1 100644 (file)
--- a/src/mesa/drivers/dri/nouveau/nv10_state.c
+++ b/src/mesa/drivers/dri/nouveau/nv10_state.c
@@ -37,29 +37,43 @@ USE OR OTHER DEALINGS IN THE SOFTWARE.
 static void nv10ViewportScale(nouveauContextPtr nmesa)
 {
        GLcontext *ctx = nmesa->glCtx;
-       GLuint w = ctx->Viewport.Width;
-       GLuint h = ctx->Viewport.Height;
-
+       GLuint w = ((GLfloat) ctx->Viewport.Width) * 0.5;
+       GLuint h = ((GLfloat) ctx->Viewport.Height) * 0.5;
        GLfloat max_depth = (ctx->Viewport.Near + ctx->Viewport.Far) * 0.5;
-/*     if (ctx->DrawBuffer) {
-               switch (ctx->DrawBuffer->_DepthBuffer->DepthBits) {
-                       case 16:
-                               max_depth *= 32767.0;
-                               break;
-                       case 24:
-                               max_depth *= 16777215.0;
-                               break;
-               }
-       } else {*/
-               /* Default to 24 bits range */  
-               max_depth *= 16777215.0;
-/*     }*/
+       GLfloat projection[16];
+       int i;
+
+       if (!ctx->DrawBuffer) {
+               return;
+       }
+       if (!ctx->DrawBuffer->_DepthBuffer) {
+               return;
+       }
+
+       switch (ctx->DrawBuffer->_DepthBuffer->DepthBits) {
+               case 16:
+                       max_depth *= 32767.0;
+                       break;
+               case 24:
+                       max_depth *= 16777215.0;
+                       break;
+       }
 
        BEGIN_RING_CACHE(NvSub3D, NV10_TCL_PRIMITIVE_3D_VIEWPORT_SCALE_X, 4);
-       OUT_RING_CACHEf ((((GLfloat) w) * 0.5) - 2048.0);
-       OUT_RING_CACHEf ((((GLfloat) h) * 0.5) - 2048.0);
+       OUT_RING_CACHEf (w - 2048.0);
+       OUT_RING_CACHEf (h - 2048.0);
        OUT_RING_CACHEf (max_depth);
        OUT_RING_CACHEf (0.0);
+
+       memset(projection, 0, sizeof(projection));
+       projection[0*4+0] = w;
+       projection[1*4+1] = h;
+       projection[2*4+2] = max_depth;
+       projection[3*4+3] = 1.0;
+       BEGIN_RING_CACHE(NvSub3D, NV10_TCL_PRIMITIVE_3D_PROJECTION_MATRIX(0), 16);
+       for (i=0; i<16; i++) {
+               OUT_RING_CACHEf (projection[i]);
+       }
 }
 
 static void nv10AlphaFunc(GLcontext *ctx, GLenum func, GLfloat ref)
@@ -774,6 +788,7 @@ static GLboolean nv10InitCard(nouveauContextPtr nmesa)
        /* Set state for stuff not initialized in nouveau_state.c */
        BEGIN_RING_SIZE(NvSub3D, NV10_TCL_PRIMITIVE_3D_TX_ENABLE(0), 2);
        OUT_RING  (0);
+       OUT_RING  (0);
        BEGIN_RING_SIZE(NvSub3D, NV10_TCL_PRIMITIVE_3D_RC_IN_ALPHA(0), 12);
        OUT_RING  (0x30141010);
        OUT_RING  (0);