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Diffstat (limited to 'src/mesa/drivers/dri/intel/intel_pixel_draw.c')
-rw-r--r--src/mesa/drivers/dri/intel/intel_pixel_draw.c380
1 files changed, 380 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/intel/intel_pixel_draw.c b/src/mesa/drivers/dri/intel/intel_pixel_draw.c
new file mode 100644
index 0000000000..5675084da5
--- /dev/null
+++ b/src/mesa/drivers/dri/intel/intel_pixel_draw.c
@@ -0,0 +1,380 @@
+/**************************************************************************
+ *
+ * Copyright 2006 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * 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, sub license, 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 portionsalloc
+ * 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 NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS 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.
+ *
+ **************************************************************************/
+
+#include "glheader.h"
+#include "enums.h"
+#include "image.h"
+#include "mtypes.h"
+#include "macros.h"
+#include "bufferobj.h"
+#include "swrast/swrast.h"
+
+#include "intel_screen.h"
+#include "intel_context.h"
+#include "intel_ioctl.h"
+#include "intel_batchbuffer.h"
+#include "intel_blit.h"
+#include "intel_buffers.h"
+#include "intel_regions.h"
+#include "intel_pixel.h"
+#include "intel_buffer_objects.h"
+#include "intel_tris.h"
+
+
+
+static GLboolean
+do_texture_drawpixels(GLcontext * ctx,
+ GLint x, GLint y,
+ GLsizei width, GLsizei height,
+ GLenum format, GLenum type,
+ const struct gl_pixelstore_attrib *unpack,
+ const GLvoid * pixels)
+{
+ struct intel_context *intel = intel_context(ctx);
+ struct intel_region *dst = intel_drawbuf_region(intel);
+ struct intel_buffer_object *src = intel_buffer_object(unpack->BufferObj);
+ GLuint rowLength = unpack->RowLength ? unpack->RowLength : width;
+ GLuint src_offset;
+
+ if (INTEL_DEBUG & DEBUG_PIXEL)
+ fprintf(stderr, "%s\n", __FUNCTION__);
+
+ intelFlush(&intel->ctx);
+
+ if (!dst)
+ return GL_FALSE;
+
+ intel->vtbl.render_start(intel);
+ intel->vtbl.emit_state(intel);
+
+ if (src) {
+ if (!_mesa_validate_pbo_access(2, unpack, width, height, 1,
+ format, type, pixels)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glDrawPixels");
+ return GL_TRUE;
+ }
+ }
+ else {
+ /* PBO only for now:
+ */
+ if (INTEL_DEBUG & DEBUG_PIXEL)
+ _mesa_printf("%s - not PBO\n", __FUNCTION__);
+ return GL_FALSE;
+ }
+
+ /* There are a couple of things we can't do yet, one of which is
+ * set the correct state for pixel operations when GL texturing is
+ * enabled. That's a pretty rare state and probably not worth the
+ * effort. A completely device-independent version of this may do
+ * more.
+ *
+ * Similarly, we make no attempt to merge metaops processing with
+ * an enabled fragment program, though it would certainly be
+ * possible.
+ */
+ if (!intel_check_meta_tex_fragment_ops(ctx)) {
+ if (INTEL_DEBUG & DEBUG_PIXEL)
+ _mesa_printf("%s - bad GL fragment state for metaops texture\n",
+ __FUNCTION__);
+ return GL_FALSE;
+ }
+
+ intel->vtbl.install_meta_state(intel);
+
+
+ /* Is this true? Also will need to turn depth testing on according
+ * to state:
+ */
+ intel->vtbl.meta_no_stencil_write(intel);
+ intel->vtbl.meta_no_depth_write(intel);
+
+ /* Set the 3d engine to draw into the destination region:
+ */
+ intel->vtbl.meta_draw_region(intel, dst, intel->depth_region);
+
+ intel->vtbl.meta_import_pixel_state(intel);
+
+ src_offset = (GLuint) _mesa_image_address(2, unpack, pixels, width, height,
+ format, type, 0, 0, 0);
+
+
+ /* Setup the pbo up as a rectangular texture, if possible.
+ *
+ * TODO: This is almost always possible if the i915 fragment
+ * program is adjusted to correctly swizzle the sampled colors.
+ * The major exception is any 24bit texture, like RGB888, for which
+ * there is no hardware support.
+ */
+ if (!intel->vtbl.meta_tex_rect_source(intel, src->buffer, src_offset,
+ rowLength, height, format, type)) {
+ intel->vtbl.leave_meta_state(intel);
+ return GL_FALSE;
+ }
+
+ intel->vtbl.meta_texture_blend_replace(intel);
+
+
+ LOCK_HARDWARE(intel);
+
+ if (intel->driDrawable->numClipRects) {
+ __DRIdrawablePrivate *dPriv = intel->driDrawable;
+ GLint srcx, srcy;
+ GLint dstx, dsty;
+
+ dstx = x;
+ dsty = dPriv->h - (y + height);
+
+ srcx = 0; /* skiprows/pixels already done */
+ srcy = 0;
+
+ if (0) {
+ const GLint orig_x = dstx;
+ const GLint orig_y = dsty;
+
+ if (!_mesa_clip_to_region(0, 0, dst->pitch, dst->height,
+ &dstx, &dsty, &width, &height))
+ goto out;
+
+ srcx += dstx - orig_x;
+ srcy += dsty - orig_y;
+ }
+
+
+ if (INTEL_DEBUG & DEBUG_PIXEL)
+ _mesa_printf("draw %d,%d %dx%d\n", dstx, dsty, width, height);
+
+ /* Must use the regular cliprect mechanism in order to get the
+ * drawing origin set correctly. Otherwise scissor state is in
+ * incorrect coordinate space. Does this even need to hold the
+ * lock???
+ */
+ intel->vtbl.meta_draw_quad(intel,
+ dstx, dstx + width * ctx->Pixel.ZoomX,
+ dPriv->h - (y + height * ctx->Pixel.ZoomY),
+ dPriv->h - (y),
+ -ctx->Current.RasterPos[2] * .5,
+ 0x00ff00ff,
+ srcx, srcx + width, srcy + height, srcy);
+ out:
+ intel->vtbl.leave_meta_state(intel);
+ intel_batchbuffer_emit_mi_flush(intel->batch);
+ }
+ UNLOCK_HARDWARE(intel);
+ return GL_TRUE;
+}
+
+
+
+
+
+/* Pros:
+ * - no waiting for idle before updating framebuffer.
+ *
+ * Cons:
+ * - if upload is by memcpy, this may actually be slower than fallback path.
+ * - uploads the whole image even if destination is clipped
+ *
+ * Need to benchmark.
+ *
+ * Given the questions about performance, implement for pbo's only.
+ * This path is definitely a win if the pbo is already in agp. If it
+ * turns out otherwise, we can add the code necessary to upload client
+ * data to agp space before performing the blit. (Though it may turn
+ * out to be better/simpler just to use the texture engine).
+ */
+static GLboolean
+do_blit_drawpixels(GLcontext * ctx,
+ GLint x, GLint y,
+ GLsizei width, GLsizei height,
+ GLenum format, GLenum type,
+ const struct gl_pixelstore_attrib *unpack,
+ const GLvoid * pixels)
+{
+ struct intel_context *intel = intel_context(ctx);
+ struct intel_region *dest = intel_drawbuf_region(intel);
+ struct intel_buffer_object *src = intel_buffer_object(unpack->BufferObj);
+ GLuint src_offset;
+ GLuint rowLength;
+
+ if (INTEL_DEBUG & DEBUG_PIXEL)
+ _mesa_printf("%s\n", __FUNCTION__);
+
+
+ if (!dest) {
+ if (INTEL_DEBUG & DEBUG_PIXEL)
+ _mesa_printf("%s - no dest\n", __FUNCTION__);
+ return GL_FALSE;
+ }
+
+ if (src) {
+ /* This validation should be done by core mesa:
+ */
+ if (!_mesa_validate_pbo_access(2, unpack, width, height, 1,
+ format, type, pixels)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glDrawPixels");
+ return GL_TRUE;
+ }
+ }
+ else {
+ /* PBO only for now:
+ */
+ if (INTEL_DEBUG & DEBUG_PIXEL)
+ _mesa_printf("%s - not PBO\n", __FUNCTION__);
+ return GL_FALSE;
+ }
+
+ if (!intel_check_blit_format(dest, format, type)) {
+ if (INTEL_DEBUG & DEBUG_PIXEL)
+ _mesa_printf("%s - bad format for blit\n", __FUNCTION__);
+ return GL_FALSE;
+ }
+
+ if (!intel_check_blit_fragment_ops(ctx, GL_FALSE)) {
+ if (INTEL_DEBUG & DEBUG_PIXEL)
+ _mesa_printf("%s - bad GL fragment state for blitter\n",
+ __FUNCTION__);
+ return GL_FALSE;
+ }
+
+ if (ctx->Pixel.ZoomX != 1.0F) {
+ if (INTEL_DEBUG & DEBUG_PIXEL)
+ _mesa_printf("%s - bad PixelZoomX for blit\n", __FUNCTION__);
+ return GL_FALSE;
+ }
+
+
+ if (unpack->RowLength > 0)
+ rowLength = unpack->RowLength;
+ else
+ rowLength = width;
+
+ if (ctx->Pixel.ZoomY == -1.0F) {
+ if (INTEL_DEBUG & DEBUG_PIXEL)
+ _mesa_printf("%s - bad PixelZoomY for blit\n", __FUNCTION__);
+ return GL_FALSE; /* later */
+ y -= height;
+ }
+ else if (ctx->Pixel.ZoomY == 1.0F) {
+ rowLength = -rowLength;
+ }
+ else {
+ if (INTEL_DEBUG & DEBUG_PIXEL)
+ _mesa_printf("%s - bad PixelZoomY for blit\n", __FUNCTION__);
+ return GL_FALSE;
+ }
+
+ src_offset = (GLuint) _mesa_image_address(2, unpack, pixels, width, height,
+ format, type, 0, 0, 0);
+
+ intelFlush(&intel->ctx);
+ LOCK_HARDWARE(intel);
+
+ if (intel->driDrawable->numClipRects) {
+ __DRIdrawablePrivate *dPriv = intel->driDrawable;
+ int nbox = dPriv->numClipRects;
+ drm_clip_rect_t *box = dPriv->pClipRects;
+ drm_clip_rect_t rect;
+ drm_clip_rect_t dest_rect;
+ dri_bo *src_buffer = intel_bufferobj_buffer(intel, src, INTEL_READ);
+ int i;
+
+ dest_rect.x1 = dPriv->x + x;
+ dest_rect.y1 = dPriv->y + dPriv->h - (y + height);
+ dest_rect.x2 = dest_rect.x1 + width;
+ dest_rect.y2 = dest_rect.y1 + height;
+
+ for (i = 0; i < nbox; i++) {
+ if (!intel_intersect_cliprects(&rect, &dest_rect, &box[i]))
+ continue;
+
+ intelEmitCopyBlit(intel,
+ dest->cpp,
+ rowLength, src_buffer, src_offset, GL_FALSE,
+ dest->pitch, dest->buffer, 0, dest->tiling,
+ rect.x1 - dest_rect.x1,
+ rect.y2 - dest_rect.y2,
+ rect.x1,
+ rect.y1, rect.x2 - rect.x1, rect.y2 - rect.y1,
+ ctx->Color.ColorLogicOpEnabled ?
+ ctx->Color.LogicOp : GL_COPY);
+ }
+ }
+ UNLOCK_HARDWARE(intel);
+
+ if (INTEL_DEBUG & DEBUG_PIXEL)
+ _mesa_printf("%s - DONE\n", __FUNCTION__);
+
+ return GL_TRUE;
+}
+
+
+
+void
+intelDrawPixels(GLcontext * ctx,
+ GLint x, GLint y,
+ GLsizei width, GLsizei height,
+ GLenum format,
+ GLenum type,
+ const struct gl_pixelstore_attrib *unpack,
+ const GLvoid * pixels)
+{
+ if (do_blit_drawpixels(ctx, x, y, width, height, format, type,
+ unpack, pixels))
+ return;
+
+ if (do_texture_drawpixels(ctx, x, y, width, height, format, type,
+ unpack, pixels))
+ return;
+
+
+ if (INTEL_DEBUG & DEBUG_PIXEL)
+ _mesa_printf("%s: fallback to swrast\n", __FUNCTION__);
+
+ if (ctx->FragmentProgram._Current == ctx->FragmentProgram._TexEnvProgram) {
+ /*
+ * We don't want the i915 texenv program to be applied to DrawPixels.
+ * This is really just a performance optimization (mesa will other-
+ * wise happily run the fragment program on each pixel in the image).
+ */
+ struct gl_fragment_program *fpSave = ctx->FragmentProgram._Current;
+ /* can't just set current frag prog to 0 here as on buffer resize
+ we'll get new state checks which will segfault. Remains a hack. */
+ ctx->FragmentProgram._Current = NULL;
+ ctx->FragmentProgram._UseTexEnvProgram = GL_FALSE;
+ ctx->FragmentProgram._Active = GL_FALSE;
+ _swrast_DrawPixels( ctx, x, y, width, height, format, type,
+ unpack, pixels );
+ ctx->FragmentProgram._Current = fpSave;
+ ctx->FragmentProgram._UseTexEnvProgram = GL_TRUE;
+ ctx->FragmentProgram._Active = GL_TRUE;
+ _swrast_InvalidateState(ctx, _NEW_PROGRAM);
+ }
+ else {
+ _swrast_DrawPixels( ctx, x, y, width, height, format, type,
+ unpack, pixels );
+ }
+}
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