From: Patrice Mandin <pmandin@caramail.com>
Date: Tue, 4 Sep 2007 17:13:07 +0000 (+0200)
Subject: nouveau: nv10: need to transpose mesa model+proj matrix for hw
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=ece08b7fd9af5ba67afa0a5d8e0a11f688ab4b0f;p=mesa.git

nouveau: nv10: need to transpose mesa model+proj matrix for hw
---

diff --git a/src/mesa/drivers/dri/nouveau/nouveau_context.c b/src/mesa/drivers/dri/nouveau/nouveau_context.c
index 0f7bd4aa074..1e13324b983 100644
--- a/src/mesa/drivers/dri/nouveau/nouveau_context.c
+++ b/src/mesa/drivers/dri/nouveau/nouveau_context.c
@@ -210,7 +210,6 @@ GLboolean nouveauCreateContext( const __GLcontextModes *glVisual,
 	_swsetup_CreateContext( ctx );
 
 	_math_matrix_ctr(&nmesa->viewport);
-	_math_matrix_ctr(&nmesa->projection);
 
 	nouveauDDInitStateFuncs( ctx );
 	nouveauSpanInitFunctions( ctx );
diff --git a/src/mesa/drivers/dri/nouveau/nouveau_context.h b/src/mesa/drivers/dri/nouveau/nouveau_context.h
index 51666ef91c2..77fe13a9cdc 100644
--- a/src/mesa/drivers/dri/nouveau/nouveau_context.h
+++ b/src/mesa/drivers/dri/nouveau/nouveau_context.h
@@ -123,9 +123,6 @@ typedef struct nouveau_context {
 	GLuint color_offset;
 	GLuint specular_offset;
 
-	/* Projection matrix */
-	GLmatrix projection;
-
 	/* Vertex state */
 	GLuint vertex_size;
 	GLubyte *verts;
diff --git a/src/mesa/drivers/dri/nouveau/nv10_state.c b/src/mesa/drivers/dri/nouveau/nv10_state.c
index 93fc4ff9364..94525ba2a80 100644
--- a/src/mesa/drivers/dri/nouveau/nv10_state.c
+++ b/src/mesa/drivers/dri/nouveau/nv10_state.c
@@ -40,7 +40,6 @@ static void nv10ViewportScale(nouveauContextPtr nmesa)
 	GLfloat w = ((GLfloat) ctx->Viewport.Width) * 0.5;
 	GLfloat h = ((GLfloat) ctx->Viewport.Height) * 0.5;
 	GLfloat max_depth = (ctx->Viewport.Near + ctx->Viewport.Far) * 0.5;
-	int i;
 
 	if (ctx->DrawBuffer) {
 		if (ctx->DrawBuffer->_DepthBuffer) {
@@ -757,22 +756,18 @@ static void nv10UpdateProjectionMatrix(GLcontext *ctx)
 		}
 	}
 
-	/* Calc projection * modelview */
-	_math_matrix_mul_matrix(&(nmesa->projection), &(ctx->_ModelProjectMatrix),
-		ctx->ModelviewMatrixStack.Top);
-
-	/* Rescale for viewport */
+	/* Transpose and rescale for viewport */
 	for (i=0; i<4; i++) {
-		projection[i] = w * nmesa->projection.m[i];
+		projection[i] = w * ctx->_ModelProjectMatrix.m[i*4];
 	}
 	for (i=0; i<4; i++) {
-		projection[i+4] = -h * nmesa->projection.m[i+4];
+		projection[i+4] = -h * ctx->_ModelProjectMatrix.m[i*4+1];
 	}
 	for (i=0; i<4; i++) {
-		projection[i+8] = max_depth * nmesa->projection.m[i+8];
+		projection[i+8] = max_depth * ctx->_ModelProjectMatrix.m[i*4+2];
 	}
 	for (i=0; i<4; i++) {
-		projection[i+12] = nmesa->projection.m[i+12];
+		projection[i+12] = ctx->_ModelProjectMatrix.m[i*4+3];
 	}
 
 	BEGIN_RING_SIZE(NvSub3D, NV10_TCL_PRIMITIVE_3D_PROJECTION_MATRIX(0), 16);