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Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/drivers/dri/r200/r200_pixel.c')
-rw-r--r--nx-X11/extras/Mesa/src/mesa/drivers/dri/r200/r200_pixel.c492
1 files changed, 492 insertions, 0 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/dri/r200/r200_pixel.c b/nx-X11/extras/Mesa/src/mesa/drivers/dri/r200/r200_pixel.c
new file mode 100644
index 000000000..adc6a2aa2
--- /dev/null
+++ b/nx-X11/extras/Mesa/src/mesa/drivers/dri/r200/r200_pixel.c
@@ -0,0 +1,492 @@
+/* $XFree86: xc/lib/GL/mesa/src/drv/r200/r200_pixel.c,v 1.2 2002/12/16 16:18:54 dawes Exp $ */
+/*
+Copyright (C) The Weather Channel, Inc. 2002. All Rights Reserved.
+
+The Weather Channel (TM) funded Tungsten Graphics to develop the
+initial release of the Radeon 8500 driver under the XFree86 license.
+This notice must be preserved.
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice (including the
+next paragraph) shall be included in all copies or substantial
+portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+/*
+ * Authors:
+ * Keith Whitwell <keith@tungstengraphics.com>
+ */
+
+#include "glheader.h"
+#include "enums.h"
+#include "mtypes.h"
+#include "macros.h"
+#include "swrast/swrast.h"
+
+#include "r200_context.h"
+#include "r200_ioctl.h"
+#include "r200_pixel.h"
+#include "r200_swtcl.h"
+
+
+
+static GLboolean
+check_color( const GLcontext *ctx, GLenum type, GLenum format,
+ const struct gl_pixelstore_attrib *packing,
+ const void *pixels, GLint sz, GLint pitch )
+{
+ r200ContextPtr rmesa = R200_CONTEXT(ctx);
+ GLuint cpp = rmesa->r200Screen->cpp;
+
+ if (R200_DEBUG & DEBUG_PIXEL)
+ fprintf(stderr, "%s\n", __FUNCTION__);
+
+ if ( (pitch & 63) ||
+ ctx->_ImageTransferState ||
+ packing->SwapBytes ||
+ packing->LsbFirst) {
+ if (R200_DEBUG & DEBUG_PIXEL)
+ fprintf(stderr, "%s: failed 1\n", __FUNCTION__);
+ return GL_FALSE;
+ }
+
+ if ( type == GL_UNSIGNED_INT_8_8_8_8_REV &&
+ cpp == 4 &&
+ format == GL_BGRA ) {
+ if (R200_DEBUG & DEBUG_PIXEL)
+ fprintf(stderr, "%s: passed 2\n", __FUNCTION__);
+ return GL_TRUE;
+ }
+
+ if (R200_DEBUG & DEBUG_PIXEL)
+ fprintf(stderr, "%s: failed\n", __FUNCTION__);
+
+ return GL_FALSE;
+}
+
+static GLboolean
+check_color_per_fragment_ops( const GLcontext *ctx )
+{
+ int result;
+ result = (!( ctx->Color.AlphaEnabled ||
+ ctx->Depth.Test ||
+ ctx->Fog.Enabled ||
+ ctx->Scissor.Enabled ||
+ ctx->Stencil.Enabled ||
+ !ctx->Color.ColorMask[0] ||
+ !ctx->Color.ColorMask[1] ||
+ !ctx->Color.ColorMask[2] ||
+ !ctx->Color.ColorMask[3] ||
+ ctx->Color.ColorLogicOpEnabled ||
+ ctx->Texture._EnabledUnits ||
+ ctx->Depth.OcclusionTest
+ ) &&
+ ctx->Current.RasterPosValid);
+
+ return result;
+}
+
+
+
+static GLboolean
+clip_pixelrect( const GLcontext *ctx,
+ const GLframebuffer *buffer,
+ GLint *x, GLint *y,
+ GLsizei *width, GLsizei *height,
+ GLint *size )
+{
+ r200ContextPtr rmesa = R200_CONTEXT(ctx);
+
+ /* left clipping */
+ if (*x < buffer->_Xmin) {
+ *width -= (buffer->_Xmin - *x);
+ *x = buffer->_Xmin;
+ }
+
+ /* right clipping */
+ if (*x + *width > buffer->_Xmax)
+ *width -= (*x + *width - buffer->_Xmax - 1);
+
+ if (*width <= 0)
+ return GL_FALSE;
+
+ /* bottom clipping */
+ if (*y < buffer->_Ymin) {
+ *height -= (buffer->_Ymin - *y);
+ *y = buffer->_Ymin;
+ }
+
+ /* top clipping */
+ if (*y + *height > buffer->_Ymax)
+ *height -= (*y + *height - buffer->_Ymax - 1);
+
+ if (*height <= 0)
+ return GL_FALSE;
+
+ *size = ((*y + *height - 1) * rmesa->r200Screen->frontPitch +
+ (*x + *width - 1) * rmesa->r200Screen->cpp);
+
+ return GL_TRUE;
+}
+
+static GLboolean
+r200TryReadPixels( GLcontext *ctx,
+ GLint x, GLint y, GLsizei width, GLsizei height,
+ GLenum format, GLenum type,
+ const struct gl_pixelstore_attrib *pack,
+ GLvoid *pixels )
+{
+ r200ContextPtr rmesa = R200_CONTEXT(ctx);
+ GLint pitch = pack->RowLength ? pack->RowLength : width;
+ GLint blit_format;
+ GLuint cpp = rmesa->r200Screen->cpp;
+ GLint size = width * height * cpp;
+
+ if (R200_DEBUG & DEBUG_PIXEL)
+ fprintf(stderr, "%s\n", __FUNCTION__);
+
+ /* Only accelerate reading to GART buffers.
+ */
+ if ( !r200IsGartMemory(rmesa, pixels,
+ pitch * height * rmesa->r200Screen->cpp ) ) {
+ if (R200_DEBUG & DEBUG_PIXEL)
+ fprintf(stderr, "%s: dest not GART\n", __FUNCTION__);
+ return GL_FALSE;
+ }
+
+ /* Need GL_PACK_INVERT_MESA to cope with upsidedown results from
+ * blitter:
+ */
+ if (!pack->Invert) {
+ if (R200_DEBUG & DEBUG_PIXEL)
+ fprintf(stderr, "%s: MESA_PACK_INVERT not set\n", __FUNCTION__);
+ return GL_FALSE;
+ }
+
+ if (!check_color(ctx, type, format, pack, pixels, size, pitch))
+ return GL_FALSE;
+
+ switch ( rmesa->r200Screen->cpp ) {
+ case 4:
+ blit_format = R200_CP_COLOR_FORMAT_ARGB8888;
+ break;
+ default:
+ return GL_FALSE;
+ }
+
+
+ /* Although the blits go on the command buffer, need to do this and
+ * fire with lock held to guarentee cliprects and drawOffset are
+ * correct.
+ *
+ * This is an unusual situation however, as the code which flushes
+ * a full command buffer expects to be called unlocked. As a
+ * workaround, immediately flush the buffer on aquiring the lock.
+ */
+ LOCK_HARDWARE( rmesa );
+
+ if (rmesa->store.cmd_used)
+ r200FlushCmdBufLocked( rmesa, __FUNCTION__ );
+
+ if (!clip_pixelrect(ctx, ctx->ReadBuffer, &x, &y, &width, &height,
+ &size)) {
+ UNLOCK_HARDWARE( rmesa );
+ if (R200_DEBUG & DEBUG_PIXEL)
+ fprintf(stderr, "%s totally clipped -- nothing to do\n",
+ __FUNCTION__);
+ return GL_TRUE;
+ }
+
+ {
+ __DRIdrawablePrivate *dPriv = rmesa->dri.drawable;
+ int nbox = dPriv->numClipRects;
+ int src_offset = rmesa->state.color.drawOffset
+ + rmesa->r200Screen->fbLocation;
+ int src_pitch = rmesa->state.color.drawPitch * rmesa->r200Screen->cpp;
+ int dst_offset = r200GartOffsetFromVirtual( rmesa, pixels );
+ int dst_pitch = pitch * rmesa->r200Screen->cpp;
+ drm_clip_rect_t *box = dPriv->pClipRects;
+ int i;
+
+ r200EmitWait( rmesa, RADEON_WAIT_3D );
+
+ y = dPriv->h - y - height;
+ x += dPriv->x;
+ y += dPriv->y;
+
+
+ if (R200_DEBUG & DEBUG_PIXEL)
+ fprintf(stderr, "readpixel blit src_pitch %d dst_pitch %d\n",
+ src_pitch, dst_pitch);
+
+ for (i = 0 ; i < nbox ; i++)
+ {
+ GLint bx = box[i].x1;
+ GLint by = box[i].y1;
+ GLint bw = box[i].x2 - bx;
+ GLint bh = box[i].y2 - by;
+
+ if (bx < x) bw -= x - bx, bx = x;
+ if (by < y) bh -= y - by, by = y;
+ if (bx + bw > x + width) bw = x + width - bx;
+ if (by + bh > y + height) bh = y + height - by;
+ if (bw <= 0) continue;
+ if (bh <= 0) continue;
+
+ r200EmitBlit( rmesa,
+ blit_format,
+ src_pitch, src_offset,
+ dst_pitch, dst_offset,
+ bx, by,
+ bx - x, by - y,
+ bw, bh );
+ }
+
+ r200FlushCmdBufLocked( rmesa, __FUNCTION__ );
+ }
+ UNLOCK_HARDWARE( rmesa );
+
+ r200Finish( ctx ); /* required by GL */
+
+ return GL_TRUE;
+}
+
+static void
+r200ReadPixels( GLcontext *ctx,
+ GLint x, GLint y, GLsizei width, GLsizei height,
+ GLenum format, GLenum type,
+ const struct gl_pixelstore_attrib *pack,
+ GLvoid *pixels )
+{
+ if (R200_DEBUG & DEBUG_PIXEL)
+ fprintf(stderr, "%s\n", __FUNCTION__);
+
+ if (!r200TryReadPixels( ctx, x, y, width, height, format, type, pack,
+ pixels))
+ _swrast_ReadPixels( ctx, x, y, width, height, format, type, pack,
+ pixels);
+}
+
+
+
+
+static void do_draw_pix( GLcontext *ctx,
+ GLint x, GLint y, GLsizei width, GLsizei height,
+ GLint pitch,
+ const void *pixels,
+ GLuint planemask)
+{
+ r200ContextPtr rmesa = R200_CONTEXT(ctx);
+ __DRIdrawablePrivate *dPriv = rmesa->dri.drawable;
+ drm_clip_rect_t *box = dPriv->pClipRects;
+ int nbox = dPriv->numClipRects;
+ int i;
+ int blit_format;
+ int size;
+ int src_offset = r200GartOffsetFromVirtual( rmesa, pixels );
+ int src_pitch = pitch * rmesa->r200Screen->cpp;
+
+ if (R200_DEBUG & DEBUG_PIXEL)
+ fprintf(stderr, "%s\n", __FUNCTION__);
+
+ switch ( rmesa->r200Screen->cpp ) {
+ case 2:
+ blit_format = R200_CP_COLOR_FORMAT_RGB565;
+ break;
+ case 4:
+ blit_format = R200_CP_COLOR_FORMAT_ARGB8888;
+ break;
+ default:
+ return;
+ }
+
+
+ LOCK_HARDWARE( rmesa );
+
+ if (rmesa->store.cmd_used)
+ r200FlushCmdBufLocked( rmesa, __FUNCTION__ );
+
+ y -= height; /* cope with pixel zoom */
+
+ if (!clip_pixelrect(ctx, ctx->DrawBuffer,
+ &x, &y, &width, &height,
+ &size)) {
+ UNLOCK_HARDWARE( rmesa );
+ return;
+ }
+
+ y = dPriv->h - y - height; /* convert from gl to hardware coords */
+ x += dPriv->x;
+ y += dPriv->y;
+
+
+ r200EmitWait( rmesa, RADEON_WAIT_3D );
+
+ for (i = 0 ; i < nbox ; i++ )
+ {
+ GLint bx = box[i].x1;
+ GLint by = box[i].y1;
+ GLint bw = box[i].x2 - bx;
+ GLint bh = box[i].y2 - by;
+
+ if (bx < x) bw -= x - bx, bx = x;
+ if (by < y) bh -= y - by, by = y;
+ if (bx + bw > x + width) bw = x + width - bx;
+ if (by + bh > y + height) bh = y + height - by;
+ if (bw <= 0) continue;
+ if (bh <= 0) continue;
+
+ r200EmitBlit( rmesa,
+ blit_format,
+ src_pitch, src_offset,
+ rmesa->state.color.drawPitch * rmesa->r200Screen->cpp,
+ rmesa->state.color.drawOffset + rmesa->r200Screen->fbLocation,
+ bx - x, by - y,
+ bx, by,
+ bw, bh );
+ }
+
+ r200FlushCmdBufLocked( rmesa, __FUNCTION__ );
+ r200WaitForIdleLocked( rmesa ); /* required by GL */
+ UNLOCK_HARDWARE( rmesa );
+}
+
+
+
+
+static GLboolean
+r200TryDrawPixels( GLcontext *ctx,
+ GLint x, GLint y, GLsizei width, GLsizei height,
+ GLenum format, GLenum type,
+ const struct gl_pixelstore_attrib *unpack,
+ const GLvoid *pixels )
+{
+ r200ContextPtr rmesa = R200_CONTEXT(ctx);
+ GLint pitch = unpack->RowLength ? unpack->RowLength : width;
+ GLuint planemask;
+ GLuint cpp = rmesa->r200Screen->cpp;
+ GLint size = width * pitch * cpp;
+
+ if (R200_DEBUG & DEBUG_PIXEL)
+ fprintf(stderr, "%s\n", __FUNCTION__);
+
+ switch (format) {
+ case GL_RGB:
+ case GL_RGBA:
+ case GL_BGRA:
+ planemask = r200PackColor(cpp,
+ ctx->Color.ColorMask[RCOMP],
+ ctx->Color.ColorMask[GCOMP],
+ ctx->Color.ColorMask[BCOMP],
+ ctx->Color.ColorMask[ACOMP]);
+
+ if (cpp == 2)
+ planemask |= planemask << 16;
+
+ if (planemask != ~0)
+ return GL_FALSE; /* fix me -- should be possible */
+
+ /* Can't do conversions on GART reads/draws.
+ */
+ if ( !r200IsGartMemory( rmesa, pixels, size ) ) {
+ if (R200_DEBUG & DEBUG_PIXEL)
+ fprintf(stderr, "%s: not GART memory\n", __FUNCTION__);
+ return GL_FALSE;
+ }
+
+ if (!check_color(ctx, type, format, unpack, pixels, size, pitch)) {
+ return GL_FALSE;
+ }
+ if (!check_color_per_fragment_ops(ctx)) {
+ return GL_FALSE;
+ }
+
+ if (ctx->Pixel.ZoomX != 1.0F ||
+ ctx->Pixel.ZoomY != -1.0F)
+ return GL_FALSE;
+ break;
+
+ default:
+ return GL_FALSE;
+ }
+
+ if ( r200IsGartMemory(rmesa, pixels, size) )
+ {
+ do_draw_pix( ctx, x, y, width, height, pitch, pixels, planemask );
+ return GL_TRUE;
+ }
+ else if (0)
+ {
+ /* Pixels is in regular memory -- get dma buffers and perform
+ * upload through them.
+ */
+ }
+ else
+ return GL_FALSE;
+}
+
+static void
+r200DrawPixels( GLcontext *ctx,
+ GLint x, GLint y, GLsizei width, GLsizei height,
+ GLenum format, GLenum type,
+ const struct gl_pixelstore_attrib *unpack,
+ const GLvoid *pixels )
+{
+ if (R200_DEBUG & DEBUG_PIXEL)
+ fprintf(stderr, "%s\n", __FUNCTION__);
+
+ if (!r200TryDrawPixels( ctx, x, y, width, height, format, type,
+ unpack, pixels ))
+ _swrast_DrawPixels( ctx, x, y, width, height, format, type,
+ unpack, pixels );
+}
+
+
+static void
+r200Bitmap( GLcontext *ctx, GLint px, GLint py,
+ GLsizei width, GLsizei height,
+ const struct gl_pixelstore_attrib *unpack,
+ const GLubyte *bitmap )
+{
+ r200ContextPtr rmesa = R200_CONTEXT(ctx);
+
+ if (rmesa->Fallback)
+ _swrast_Bitmap( ctx, px, py, width, height, unpack, bitmap );
+ else
+ r200PointsBitmap( ctx, px, py, width, height, unpack, bitmap );
+}
+
+
+
+void r200InitPixelFuncs( GLcontext *ctx )
+{
+ /* Pixel path fallbacks.
+ */
+ ctx->Driver.Accum = _swrast_Accum;
+ ctx->Driver.Bitmap = _swrast_Bitmap;
+ ctx->Driver.CopyPixels = _swrast_CopyPixels;
+ ctx->Driver.DrawPixels = _swrast_DrawPixels;
+ ctx->Driver.ReadPixels = _swrast_ReadPixels;
+
+ if (!getenv("R200_NO_BLITS") && R200_CONTEXT(ctx)->dri.drmMinor >= 6) {
+ ctx->Driver.ReadPixels = r200ReadPixels;
+ ctx->Driver.DrawPixels = r200DrawPixels;
+ if (getenv("R200_HW_BITMAP"))
+ ctx->Driver.Bitmap = r200Bitmap;
+ }
+}
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