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authorBrian Paul <brianp@vmware.com>2010-01-06 18:18:04 -0700
committerBrian Paul <brianp@vmware.com>2010-01-06 18:20:17 -0700
commitcb3cb96fbd3279bf3dd50439444c4c064ed6f748 (patch)
treed74fd15a811db634413c987b0aa09d9bc22198a5 /src/mesa/drivers
parent06970b2ccb6add0696710f01a07ebf9ec3922c80 (diff)
meta: move destination vertex/projection setup out of _mesa_meta_GenerateMipmap
Based on a patch submitted by Pierre Willenbrock <pierre@pirsoft.de>
Diffstat (limited to 'src/mesa/drivers')
-rw-r--r--src/mesa/drivers/common/meta.c40
1 files changed, 21 insertions, 19 deletions
diff --git a/src/mesa/drivers/common/meta.c b/src/mesa/drivers/common/meta.c
index adc986402c..181fc03556 100644
--- a/src/mesa/drivers/common/meta.c
+++ b/src/mesa/drivers/common/meta.c
@@ -2289,6 +2289,26 @@ _mesa_meta_GenerateMipmap(GLcontext *ctx, GLenum target,
_mesa_set_enable(ctx, target, GL_TRUE);
+ /* setup vertex positions */
+ {
+ verts[0].x = 0.0F;
+ verts[0].y = 0.0F;
+ verts[1].x = 1.0F;
+ verts[1].y = 0.0F;
+ verts[2].x = 1.0F;
+ verts[2].y = 1.0F;
+ verts[3].x = 0.0F;
+ verts[3].y = 1.0F;
+
+ /* upload new vertex data */
+ _mesa_BufferSubDataARB(GL_ARRAY_BUFFER_ARB, 0, sizeof(verts), verts);
+ }
+
+ /* setup projection matrix */
+ _mesa_MatrixMode(GL_PROJECTION);
+ _mesa_LoadIdentity();
+ _mesa_Ortho(0.0, 1.0, 0.0, 1.0, -1.0, 1.0);
+
/* texture is already locked, unlock now */
_mesa_unlock_texture(ctx, texObj);
@@ -2355,21 +2375,6 @@ _mesa_meta_GenerateMipmap(GLcontext *ctx, GLenum target,
}
}
- /* setup vertex positions */
- {
- verts[0].x = 0.0F;
- verts[0].y = 0.0F;
- verts[1].x = (GLfloat) dstWidth;
- verts[1].y = 0.0F;
- verts[2].x = (GLfloat) dstWidth;
- verts[2].y = (GLfloat) dstHeight;
- verts[3].x = 0.0F;
- verts[3].y = (GLfloat) dstHeight;
-
- /* upload new vertex data */
- _mesa_BufferSubDataARB(GL_ARRAY_BUFFER_ARB, 0, sizeof(verts), verts);
- }
-
/* limit sampling to src level */
_mesa_TexParameteri(target, GL_TEXTURE_BASE_LEVEL, srcLevel);
_mesa_TexParameteri(target, GL_TEXTURE_MAX_LEVEL, srcLevel);
@@ -2411,11 +2416,8 @@ _mesa_meta_GenerateMipmap(GLcontext *ctx, GLenum target,
assert(dstWidth == ctx->DrawBuffer->Width);
assert(dstHeight == ctx->DrawBuffer->Height);
- /* setup viewport and matching projection matrix */
+ /* setup viewport */
_mesa_set_viewport(ctx, 0, 0, dstWidth, dstHeight);
- _mesa_MatrixMode(GL_PROJECTION);
- _mesa_LoadIdentity();
- _mesa_Ortho(0.0F, dstWidth, 0.0F, dstHeight, -1.0F, 1.0F);
_mesa_DrawArrays(GL_TRIANGLE_FAN, 0, 4);
}