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Diffstat (limited to 'src/mesa/drivers/dri/intel/intel_pixel_bitmap.c')
-rw-r--r--src/mesa/drivers/dri/intel/intel_pixel_bitmap.c363
1 files changed, 0 insertions, 363 deletions
diff --git a/src/mesa/drivers/dri/intel/intel_pixel_bitmap.c b/src/mesa/drivers/dri/intel/intel_pixel_bitmap.c
deleted file mode 100644
index 8c0edf2..0000000
--- a/src/mesa/drivers/dri/intel/intel_pixel_bitmap.c
+++ /dev/null
@@ -1,363 +0,0 @@
-/**************************************************************************
- *
- * 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 "main/glheader.h"
-#include "main/enums.h"
-#include "main/image.h"
-#include "main/colormac.h"
-#include "main/condrender.h"
-#include "main/mtypes.h"
-#include "main/macros.h"
-#include "main/pbo.h"
-#include "main/bufferobj.h"
-#include "main/state.h"
-#include "main/texobj.h"
-#include "main/context.h"
-#include "main/fbobject.h"
-#include "swrast/swrast.h"
-#include "drivers/common/meta.h"
-
-#include "intel_screen.h"
-#include "intel_context.h"
-#include "intel_batchbuffer.h"
-#include "intel_blit.h"
-#include "intel_fbo.h"
-#include "intel_regions.h"
-#include "intel_buffers.h"
-#include "intel_pixel.h"
-#include "intel_reg.h"
-
-
-#define FILE_DEBUG_FLAG DEBUG_PIXEL
-
-
-/* Unlike the other intel_pixel_* functions, the expectation here is
- * that the incoming data is not in a PBO. With the XY_TEXT blit
- * method, there's no benefit haveing it in a PBO, but we could
- * implement a path based on XY_MONO_SRC_COPY_BLIT which might benefit
- * PBO bitmaps. I think they are probably pretty rare though - I
- * wonder if Xgl uses them?
- */
-static const GLubyte *map_pbo( struct gl_context *ctx,
- GLsizei width, GLsizei height,
- const struct gl_pixelstore_attrib *unpack,
- const GLubyte *bitmap )
-{
- GLubyte *buf;
-
- if (!_mesa_validate_pbo_access(2, unpack, width, height, 1,
- GL_COLOR_INDEX, GL_BITMAP,
- INT_MAX, (const GLvoid *) bitmap)) {
- _mesa_error(ctx, GL_INVALID_OPERATION,"glBitmap(invalid PBO access)");
- return NULL;
- }
-
- buf = (GLubyte *) ctx->Driver.MapBufferRange(ctx, 0, unpack->BufferObj->Size,
- GL_MAP_READ_BIT,
- unpack->BufferObj);
- if (!buf) {
- _mesa_error(ctx, GL_INVALID_OPERATION, "glBitmap(PBO is mapped)");
- return NULL;
- }
-
- return ADD_POINTERS(buf, bitmap);
-}
-
-static bool test_bit( const GLubyte *src, GLuint bit )
-{
- return (src[bit/8] & (1<<(bit % 8))) ? 1 : 0;
-}
-
-static void set_bit( GLubyte *dest, GLuint bit )
-{
- dest[bit/8] |= 1 << (bit % 8);
-}
-
-/* Extract a rectangle's worth of data from the bitmap. Called
- * per chunk of HW-sized bitmap.
- */
-static GLuint get_bitmap_rect(GLsizei width, GLsizei height,
- const struct gl_pixelstore_attrib *unpack,
- const GLubyte *bitmap,
- GLuint x, GLuint y,
- GLuint w, GLuint h,
- GLubyte *dest,
- GLuint row_align,
- bool invert)
-{
- GLuint src_offset = (x + unpack->SkipPixels) & 0x7;
- GLuint mask = unpack->LsbFirst ? 0 : 7;
- GLuint bit = 0;
- GLint row, col;
- GLint first, last;
- GLint incr;
- GLuint count = 0;
-
- DBG("%s %d,%d %dx%d bitmap %dx%d skip %d src_offset %d mask %d\n",
- __FUNCTION__, x,y,w,h,width,height,unpack->SkipPixels, src_offset, mask);
-
- if (invert) {
- first = h-1;
- last = 0;
- incr = -1;
- }
- else {
- first = 0;
- last = h-1;
- incr = 1;
- }
-
- /* Require that dest be pre-zero'd.
- */
- for (row = first; row != (last+incr); row += incr) {
- const GLubyte *rowsrc = _mesa_image_address2d(unpack, bitmap,
- width, height,
- GL_COLOR_INDEX, GL_BITMAP,
- y + row, x);
-
- for (col = 0; col < w; col++, bit++) {
- if (test_bit(rowsrc, (col + src_offset) ^ mask)) {
- set_bit(dest, bit ^ 7);
- count++;
- }
- }
-
- if (row_align)
- bit = ALIGN(bit, row_align);
- }
-
- return count;
-}
-
-/**
- * Returns the low Y value of the vertical range given, flipped according to
- * whether the framebuffer is or not.
- */
-static INLINE int
-y_flip(struct gl_framebuffer *fb, int y, int height)
-{
- if (_mesa_is_user_fbo(fb))
- return y;
- else
- return fb->Height - y - height;
-}
-
-/*
- * Render a bitmap.
- */
-static bool
-do_blit_bitmap( struct gl_context *ctx,
- GLint dstx, GLint dsty,
- GLsizei width, GLsizei height,
- const struct gl_pixelstore_attrib *unpack,
- const GLubyte *bitmap )
-{
- struct intel_context *intel = intel_context(ctx);
- struct gl_framebuffer *fb = ctx->DrawBuffer;
- struct intel_renderbuffer *irb;
- GLfloat tmpColor[4];
- GLubyte ubcolor[4];
- GLuint color;
- GLsizei bitmap_width = width;
- GLsizei bitmap_height = height;
- GLint px, py;
- GLuint stipple[32];
- GLint orig_dstx = dstx;
- GLint orig_dsty = dsty;
-
- /* Update draw buffer bounds */
- _mesa_update_state(ctx);
-
- if (ctx->Depth.Test) {
- /* The blit path produces incorrect results when depth testing is on.
- * It seems the blit Z coord is always 1.0 (the far plane) so fragments
- * will likely be obscured by other, closer geometry.
- */
- return false;
- }
-
- intel_prepare_render(intel);
-
- if (fb->_NumColorDrawBuffers != 1) {
- perf_debug("accelerated glBitmap() only supports rendering to a "
- "single color buffer\n");
- return false;
- }
-
- irb = intel_renderbuffer(fb->_ColorDrawBuffers[0]);
-
- if (_mesa_is_bufferobj(unpack->BufferObj)) {
- bitmap = map_pbo(ctx, width, height, unpack, bitmap);
- if (bitmap == NULL)
- return true; /* even though this is an error, we're done */
- }
-
- COPY_4V(tmpColor, ctx->Current.RasterColor);
-
- if (_mesa_need_secondary_color(ctx)) {
- ADD_3V(tmpColor, tmpColor, ctx->Current.RasterSecondaryColor);
- }
-
- UNCLAMPED_FLOAT_TO_UBYTE(ubcolor[0], tmpColor[0]);
- UNCLAMPED_FLOAT_TO_UBYTE(ubcolor[1], tmpColor[1]);
- UNCLAMPED_FLOAT_TO_UBYTE(ubcolor[2], tmpColor[2]);
- UNCLAMPED_FLOAT_TO_UBYTE(ubcolor[3], tmpColor[3]);
-
- switch (irb->mt->format) {
- case MESA_FORMAT_ARGB8888:
- case MESA_FORMAT_XRGB8888:
- color = PACK_COLOR_8888(ubcolor[3], ubcolor[0], ubcolor[1], ubcolor[2]);
- break;
- case MESA_FORMAT_RGB565:
- color = PACK_COLOR_565(ubcolor[0], ubcolor[1], ubcolor[2]);
- break;
- default:
- perf_debug("Unsupported format %s in accelerated glBitmap()\n",
- _mesa_get_format_name(irb->mt->format));
- return false;
- }
-
- if (!intel_check_blit_fragment_ops(ctx, tmpColor[3] == 1.0F))
- return false;
-
- /* Clip to buffer bounds and scissor. */
- if (!_mesa_clip_to_region(fb->_Xmin, fb->_Ymin,
- fb->_Xmax, fb->_Ymax,
- &dstx, &dsty, &width, &height))
- goto out;
-
- dsty = y_flip(fb, dsty, height);
-
-#define DY 32
-#define DX 32
-
- /* The blitter has no idea about fast color clears, so we need to resolve
- * the miptree before we do anything.
- */
- intel_miptree_resolve_color(intel, irb->mt);
-
- /* Chop it all into chunks that can be digested by hardware: */
- for (py = 0; py < height; py += DY) {
- for (px = 0; px < width; px += DX) {
- int h = MIN2(DY, height - py);
- int w = MIN2(DX, width - px);
- GLuint sz = ALIGN(ALIGN(w,8) * h, 64)/8;
- GLenum logic_op = ctx->Color.ColorLogicOpEnabled ?
- ctx->Color.LogicOp : GL_COPY;
-
- assert(sz <= sizeof(stipple));
- memset(stipple, 0, sz);
-
- /* May need to adjust this when padding has been introduced in
- * sz above:
- *
- * Have to translate destination coordinates back into source
- * coordinates.
- */
- int count = get_bitmap_rect(bitmap_width, bitmap_height, unpack,
- bitmap,
- -orig_dstx + (dstx + px),
- -orig_dsty + y_flip(fb, dsty + py, h),
- w, h,
- (GLubyte *)stipple,
- 8,
- _mesa_is_winsys_fbo(fb));
- if (count == 0)
- continue;
-
- if (!intelEmitImmediateColorExpandBlit(intel,
- irb->mt->cpp,
- (GLubyte *)stipple,
- sz,
- color,
- irb->mt->region->pitch,
- irb->mt->region->bo,
- 0,
- irb->mt->region->tiling,
- dstx + px,
- dsty + py,
- w, h,
- logic_op)) {
- return false;
- }
-
- if (ctx->Query.CurrentOcclusionObject)
- ctx->Query.CurrentOcclusionObject->Result += count;
- }
- }
-out:
-
- if (unlikely(INTEL_DEBUG & DEBUG_SYNC))
- intel_batchbuffer_flush(intel);
-
- if (_mesa_is_bufferobj(unpack->BufferObj)) {
- /* done with PBO so unmap it now */
- ctx->Driver.UnmapBuffer(ctx, unpack->BufferObj);
- }
-
- intel_check_front_buffer_rendering(intel);
-
- return true;
-}
-
-
-/* There are a large number of possible ways to implement bitmap on
- * this hardware, most of them have some sort of drawback. Here are a
- * few that spring to mind:
- *
- * Blit:
- * - XY_MONO_SRC_BLT_CMD
- * - use XY_SETUP_CLIP_BLT for cliprect clipping.
- * - XY_TEXT_BLT
- * - XY_TEXT_IMMEDIATE_BLT
- * - blit per cliprect, subject to maximum immediate data size.
- * - XY_COLOR_BLT
- * - per pixel or run of pixels
- * - XY_PIXEL_BLT
- * - good for sparse bitmaps
- *
- * 3D engine:
- * - Point per pixel
- * - Translate bitmap to an alpha texture and render as a quad
- * - Chop bitmap up into 32x32 squares and render w/polygon stipple.
- */
-void
-intelBitmap(struct gl_context * ctx,
- GLint x, GLint y,
- GLsizei width, GLsizei height,
- const struct gl_pixelstore_attrib *unpack,
- const GLubyte * pixels)
-{
- if (!_mesa_check_conditional_render(ctx))
- return;
-
- if (do_blit_bitmap(ctx, x, y, width, height,
- unpack, pixels))
- return;
-
- _mesa_meta_Bitmap(ctx, x, y, width, height, unpack, pixels);
-}
generated by cgit v1.1 at 2024-09-22 03:44:17 +0000