From: Ian Romanick <ian.d.romanick@intel.com>
Date: Sat, 14 Dec 2013 08:55:50 +0000 (-0800)
Subject: meta: Expand the vertex structure for the DrawPixels paths
X-Git-Tag: upstream/10.3~3764
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=897f97566898b6ddde710c8c4e83ecf163c2c62f;p=platform%2Fupstream%2Fmesa.git

meta: Expand the vertex structure for the DrawPixels paths

Another step leading to some code sharing.  Note that the new DrawPixels
vertex structure is the same as the new vertex structure in BlitFramebuffer
and the others.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
---

diff --git a/src/mesa/drivers/common/meta.c b/src/mesa/drivers/common/meta.c
index e9113e9..e56440f 100644
--- a/src/mesa/drivers/common/meta.c
+++ b/src/mesa/drivers/common/meta.c
@@ -2726,7 +2726,7 @@ _mesa_meta_DrawPixels(struct gl_context *ctx,
    const struct gl_pixelstore_attrib unpackSave = ctx->Unpack;
    const GLuint origStencilMask = ctx->Stencil.WriteMask[0];
    struct vertex {
-      GLfloat x, y, z, s, t;
+      GLfloat x, y, z, tex[4];
    };
    struct vertex verts[4];
    GLenum texIntFormat;
@@ -2824,6 +2824,9 @@ _mesa_meta_DrawPixels(struct gl_context *ctx,
 
    newTex = alloc_texture(tex, width, height, texIntFormat);
 
+   /* Silence valgrind warnings about reading uninitialized stack. */
+   memset(verts, 0, sizeof(verts));
+
    /* vertex positions, texcoords (after texture allocation!) */
    {
       const GLfloat x0 = (GLfloat) x;
@@ -2835,23 +2838,23 @@ _mesa_meta_DrawPixels(struct gl_context *ctx,
       verts[0].x = x0;
       verts[0].y = y0;
       verts[0].z = z;
-      verts[0].s = 0.0F;
-      verts[0].t = 0.0F;
+      verts[0].tex[0] = 0.0F;
+      verts[0].tex[1] = 0.0F;
       verts[1].x = x1;
       verts[1].y = y0;
       verts[1].z = z;
-      verts[1].s = tex->Sright;
-      verts[1].t = 0.0F;
+      verts[1].tex[0] = tex->Sright;
+      verts[1].tex[1] = 0.0F;
       verts[2].x = x1;
       verts[2].y = y1;
       verts[2].z = z;
-      verts[2].s = tex->Sright;
-      verts[2].t = tex->Ttop;
+      verts[2].tex[0] = tex->Sright;
+      verts[2].tex[1] = tex->Ttop;
       verts[3].x = x0;
       verts[3].y = y1;
       verts[3].z = z;
-      verts[3].s = 0.0F;
-      verts[3].t = tex->Ttop;
+      verts[3].tex[0] = 0.0F;
+      verts[3].tex[1] = tex->Ttop;
    }
 
    if (drawpix->VAO == 0) {
@@ -2868,7 +2871,7 @@ _mesa_meta_DrawPixels(struct gl_context *ctx,
 
    /* setup vertex arrays */
    _mesa_VertexPointer(3, GL_FLOAT, sizeof(struct vertex), OFFSET(x));
-   _mesa_TexCoordPointer(2, GL_FLOAT, sizeof(struct vertex), OFFSET(s));
+   _mesa_TexCoordPointer(2, GL_FLOAT, sizeof(struct vertex), OFFSET(tex));
    _mesa_EnableClientState(GL_VERTEX_ARRAY);
    _mesa_EnableClientState(GL_TEXTURE_COORD_ARRAY);