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authormarha <marha@users.sourceforge.net>2010-07-28 18:31:42 +0000
committermarha <marha@users.sourceforge.net>2010-07-28 18:31:42 +0000
commit0c0b98ae72397aeed280ffc146b16eb13065f332 (patch)
tree4a34d9ba1cc396e912aa5b473bc0a5bba968d656 /mesalib/src/mesa/drivers/common/meta.c
parentddf3c86d1414ac4d95e352b195ac30188f024429 (diff)
parent022d9c6cf6a67385d84ff33ce095f5c7f9f6d0cc (diff)
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svn merge ^/branches/released .
Diffstat (limited to 'mesalib/src/mesa/drivers/common/meta.c')
-rw-r--r--mesalib/src/mesa/drivers/common/meta.c36
1 files changed, 28 insertions, 8 deletions
diff --git a/mesalib/src/mesa/drivers/common/meta.c b/mesalib/src/mesa/drivers/common/meta.c
index b97b760f1..89ca476f9 100644
--- a/mesalib/src/mesa/drivers/common/meta.c
+++ b/mesalib/src/mesa/drivers/common/meta.c
@@ -424,6 +424,7 @@ _mesa_meta_begin(GLcontext *ctx, GLbitfield state)
if (state & META_SCISSOR) {
save->Scissor = ctx->Scissor; /* struct copy */
+ _mesa_set_enable(ctx, GL_SCISSOR_TEST, GL_FALSE);
}
if (state & META_SHADER) {
@@ -812,6 +813,21 @@ _mesa_meta_end(GLcontext *ctx)
/**
+ * Convert Z from a normalized value in the range [0, 1] to an object-space
+ * Z coordinate in [-1, +1] so that drawing at the new Z position with the
+ * default/identity ortho projection results in the original Z value.
+ * Used by the meta-Clear, Draw/CopyPixels and Bitmap functions where the Z
+ * value comes from the clear value or raster position.
+ */
+static INLINE GLfloat
+invert_z(GLfloat normZ)
+{
+ GLfloat objZ = 1.0 - 2.0 * normZ;
+ return objZ;
+}
+
+
+/**
* One-time init for a temp_texture object.
* Choose tex target, compute max tex size, etc.
*/
@@ -1112,8 +1128,10 @@ blitframebuffer_texture(GLcontext *ctx,
_mesa_BindTexture(target, texObj->Name);
_mesa_TexParameteri(target, GL_TEXTURE_MIN_FILTER, filter);
_mesa_TexParameteri(target, GL_TEXTURE_MAG_FILTER, filter);
- _mesa_TexParameteri(target, GL_TEXTURE_BASE_LEVEL, srcLevel);
- _mesa_TexParameteri(target, GL_TEXTURE_MAX_LEVEL, srcLevel);
+ if (target != GL_TEXTURE_RECTANGLE_ARB) {
+ _mesa_TexParameteri(target, GL_TEXTURE_BASE_LEVEL, srcLevel);
+ _mesa_TexParameteri(target, GL_TEXTURE_MAX_LEVEL, srcLevel);
+ }
_mesa_TexParameteri(target, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
_mesa_TexParameteri(target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
_mesa_TexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
@@ -1171,8 +1189,10 @@ blitframebuffer_texture(GLcontext *ctx,
*/
_mesa_TexParameteri(target, GL_TEXTURE_MIN_FILTER, minFilterSave);
_mesa_TexParameteri(target, GL_TEXTURE_MAG_FILTER, magFilterSave);
- _mesa_TexParameteri(target, GL_TEXTURE_BASE_LEVEL, baseLevelSave);
- _mesa_TexParameteri(target, GL_TEXTURE_MAX_LEVEL, maxLevelSave);
+ if (target != GL_TEXTURE_RECTANGLE_ARB) {
+ _mesa_TexParameteri(target, GL_TEXTURE_BASE_LEVEL, baseLevelSave);
+ _mesa_TexParameteri(target, GL_TEXTURE_MAX_LEVEL, maxLevelSave);
+ }
_mesa_TexParameteri(target, GL_TEXTURE_WRAP_S, wrapSSave);
_mesa_TexParameteri(target, GL_TEXTURE_WRAP_T, wrapTSave);
@@ -1428,7 +1448,7 @@ _mesa_meta_Clear(GLcontext *ctx, GLbitfield buffers)
const GLfloat y0 = (GLfloat) ctx->DrawBuffer->_Ymin;
const GLfloat x1 = (GLfloat) ctx->DrawBuffer->_Xmax;
const GLfloat y1 = (GLfloat) ctx->DrawBuffer->_Ymax;
- const GLfloat z = 1.0 - 2.0 * ctx->Depth.Clear;
+ const GLfloat z = invert_z(ctx->Depth.Clear);
GLuint i;
verts[0].x = x0;
@@ -1534,7 +1554,7 @@ _mesa_meta_CopyPixels(GLcontext *ctx, GLint srcX, GLint srcY,
const GLfloat dstY0 = (GLfloat) dstY;
const GLfloat dstX1 = dstX + width * ctx->Pixel.ZoomX;
const GLfloat dstY1 = dstY + height * ctx->Pixel.ZoomY;
- const GLfloat z = ctx->Current.RasterPos[2];
+ const GLfloat z = invert_z(ctx->Current.RasterPos[2]);
verts[0].x = dstX0;
verts[0].y = dstY0;
@@ -1823,7 +1843,7 @@ _mesa_meta_DrawPixels(GLcontext *ctx,
const GLfloat y0 = (GLfloat) y;
const GLfloat x1 = x + width * ctx->Pixel.ZoomX;
const GLfloat y1 = y + height * ctx->Pixel.ZoomY;
- const GLfloat z = ctx->Current.RasterPos[2];
+ const GLfloat z = invert_z(ctx->Current.RasterPos[2]);
verts[0].x = x0;
verts[0].y = y0;
@@ -2026,7 +2046,7 @@ _mesa_meta_Bitmap(GLcontext *ctx,
const GLfloat y0 = (GLfloat) y;
const GLfloat x1 = (GLfloat) (x + width);
const GLfloat y1 = (GLfloat) (y + height);
- const GLfloat z = ctx->Current.RasterPos[2];
+ const GLfloat z = invert_z(ctx->Current.RasterPos[2]);
GLuint i;
verts[0].x = x0;