+++ /dev/null
-/*
-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 "main/glheader.h"
-#include "main/enums.h"
-#include "main/mtypes.h"
-#include "main/macros.h"
-#include "swrast/swrast.h"
-
-#include "r200_context.h"
-#include "r200_ioctl.h"
-#include "r200_pixel.h"
-#include "r200_swtcl.h"
-
-#include "drirenderbuffer.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->radeon.radeonScreen->cpp;
-
- if (R200_DEBUG & RADEON_PIXEL)
- fprintf(stderr, "%s\n", __FUNCTION__);
-
- if ( (pitch & 63) ||
- ctx->_ImageTransferState ||
- packing->SwapBytes ||
- packing->LsbFirst) {
- if (R200_DEBUG & RADEON_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 & RADEON_PIXEL)
- fprintf(stderr, "%s: passed 2\n", __FUNCTION__);
- return GL_TRUE;
- }
-
- if (R200_DEBUG & RADEON_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][0] ||
- !ctx->Color.ColorMask[0][1] ||
- !ctx->Color.ColorMask[0][2] ||
- !ctx->Color.ColorMask[0][3] ||
- ctx->Color.ColorLogicOpEnabled ||
- ctx->Texture._EnabledUnits
- ) &&
- ctx->Current.RasterPosValid);
-
- return result;
-}
-
-
-#if 0
-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->radeon.radeonScreen->frontPitch +
- (*x + *width - 1) * rmesa->radeon.radeonScreen->cpp);
-
- return GL_TRUE;
-}
-#endif
-
-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 )
-{
- return GL_FALSE;
-#if 0
- r200ContextPtr rmesa = R200_CONTEXT(ctx);
- GLint pitch = pack->RowLength ? pack->RowLength : width;
- GLint blit_format;
- GLuint cpp = rmesa->radeon.radeonScreen->cpp;
- GLint size = width * height * cpp;
-
- if (R200_DEBUG & RADEON_PIXEL)
- fprintf(stderr, "%s\n", __FUNCTION__);
-
- /* Only accelerate reading to GART buffers.
- */
- if ( !r200IsGartMemory(rmesa, pixels,
- pitch * height * rmesa->radeon.radeonScreen->cpp ) ) {
- if (R200_DEBUG & RADEON_PIXEL)
- fprintf(stderr, "%s: dest not GART\n", __FUNCTION__);
- }
-
- /* Need GL_PACK_INVERT_MESA to cope with upsidedown results from
- * blitter:
- */
- if (!pack->Invert) {
- if (R200_DEBUG & RADEON_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->radeon.radeonScreen->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->radeon );
-
- if (rmesa->store.cmd_used)
- rcommonFlushCmdBufLocked( &rmesa->radeon, __FUNCTION__ );
-
- if (!clip_pixelrect(ctx, ctx->ReadBuffer, &x, &y, &width, &height,
- &size)) {
- UNLOCK_HARDWARE( &rmesa->radeon );
- if (R200_DEBUG & RADEON_PIXEL)
- fprintf(stderr, "%s totally clipped -- nothing to do\n",
- __FUNCTION__);
- return GL_TRUE;
- }
-
- {
- __DRIdrawable *dPriv = rmesa->radeon.dri.drawable;
- driRenderbuffer *drb = (driRenderbuffer *) ctx->ReadBuffer->_ColorReadBuffer;
- int nbox = dPriv->numClipRects;
- int src_offset = drb->offset
- + rmesa->radeon.radeonScreen->fbLocation;
- int src_pitch = drb->pitch * drb->cpp;
- int dst_offset = r200GartOffsetFromVirtual( rmesa, pixels );
- int dst_pitch = pitch * rmesa->radeon.radeonScreen->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 & RADEON_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 );
- }
-
- rcommonFlushCmdBufLocked( &rmesa->radeon, __FUNCTION__ );
- }
- UNLOCK_HARDWARE( &rmesa->radeon );
-
- radeonFinish( ctx ); /* required by GL */
-#endif
- 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 & RADEON_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)
-{
- if (R200_DEBUG & RADEON_PIXEL)
- fprintf(stderr, "%s\n", __FUNCTION__);
-
-#if 0
- r200ContextPtr rmesa = R200_CONTEXT(ctx);
- __DRIdrawable *dPriv = radeon_get_drawable(&rmesa->radeon);
- drm_clip_rect_t *box = dPriv->pClipRects;
- struct gl_renderbuffer *rb = ctx->ReadBuffer->_ColorDrawBuffers[0];
- driRenderbuffer *drb = (driRenderbuffer *) rb;
- int nbox = dPriv->numClipRects;
- int i;
- int blit_format;
- int size;
- int src_offset = r200GartOffsetFromVirtual( rmesa, pixels );
- int src_pitch = pitch * rmesa->radeon.radeonScreen->cpp;
-
- switch ( rmesa->radeon.radeonScreen->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->radeon );
-
- if (rmesa->store.cmd_used)
- rcommonFlushCmdBufLocked( &rmesa->radeon, __FUNCTION__ );
-
- y -= height; /* cope with pixel zoom */
-
- if (!clip_pixelrect(ctx, ctx->DrawBuffer,
- &x, &y, &width, &height,
- &size)) {
- UNLOCK_HARDWARE( &rmesa->radeon );
- 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,
- drb->pitch * drb->cpp,
- drb->offset + rmesa->radeon.radeonScreen->fbLocation,
- bx - x, by - y,
- bx, by,
- bw, bh );
- }
-
- rcommonFlushCmdBufLocked( &rmesa->radeon, __FUNCTION__ );
- radeonWaitForIdleLocked( &rmesa->radeon ); /* required by GL */
- UNLOCK_HARDWARE( &rmesa->radeon );
-#endif
-}
-
-
-
-
-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->radeon.radeonScreen->cpp;
- GLint size = height * pitch * cpp;
-
- if (R200_DEBUG & RADEON_PIXEL)
- fprintf(stderr, "%s\n", __FUNCTION__);
-
- /* check that we're drawing to exactly one color buffer */
- if (ctx->DrawBuffer->_NumColorDrawBuffers != 1)
- return GL_FALSE;
-
- switch (format) {
- case GL_RGB:
- case GL_RGBA:
- case GL_BGRA:
- planemask = radeonPackColor(cpp,
- ctx->Color.ColorMask[0][RCOMP],
- ctx->Color.ColorMask[0][GCOMP],
- ctx->Color.ColorMask[0][BCOMP],
- ctx->Color.ColorMask[0][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 & RADEON_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 (0)// 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 & RADEON_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->radeon.Fallback)
- _swrast_Bitmap( ctx, px, py, width, height, unpack, bitmap );
- else
- r200PointsBitmap( ctx, px, py, width, height, unpack, bitmap );
-}
-
-
-
-void r200InitPixelFuncs( GLcontext *ctx )
-{
- if (!getenv("R200_NO_BLITS")) {
- ctx->Driver.ReadPixels = r200ReadPixels;
- ctx->Driver.DrawPixels = r200DrawPixels;
- if (getenv("R200_HW_BITMAP"))
- ctx->Driver.Bitmap = r200Bitmap;
- }
-}
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