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/*
* Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
* Joakim Sindholt <opensource@zhasha.com>
*
* 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
* on 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 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 NON-INFRINGEMENT. IN NO EVENT SHALL
* THE AUTHOR(S) AND/OR THEIR 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 "r300_surface.h"
static void r300_surface_setup(struct pipe_context* pipe,
struct pipe_surface* dest,
unsigned x, unsigned y,
unsigned w, unsigned h)
{
struct r300_context* r300 = r300_context(pipe);
CS_LOCALS(r300);
struct r300_capabilities* caps = r300_screen(pipe->screen)->caps;
struct r300_texture* tex = (struct r300_texture*)dest->texture;
unsigned pixpitch = tex->stride / tex->tex.block.size;
r300_emit_blend_state(r300, &blend_clear_state);
r300_emit_blend_color_state(r300, &blend_color_clear_state);
r300_emit_dsa_state(r300, &dsa_clear_state);
r300_emit_rs_state(r300, &rs_clear_state);
BEGIN_CS(15);
/* Pixel scissors. */
OUT_CS_REG_SEQ(R300_SC_SCISSORS_TL, 2);
if (caps->is_r500) {
OUT_CS((x << R300_SCISSORS_X_SHIFT) | (y << R300_SCISSORS_Y_SHIFT));
OUT_CS((w << R300_SCISSORS_X_SHIFT) | (h << R300_SCISSORS_Y_SHIFT));
} else {
/* Non-R500 chipsets have an offset of 1440 in their scissors. */
OUT_CS(((x + 1440) << R300_SCISSORS_X_SHIFT) |
((y + 1440) << R300_SCISSORS_Y_SHIFT));
OUT_CS(((w + 1440) << R300_SCISSORS_X_SHIFT) |
((h + 1440) << R300_SCISSORS_Y_SHIFT));
}
/* Flush colorbuffer and blend caches. */
OUT_CS_REG(R300_RB3D_DSTCACHE_CTLSTAT,
R300_RB3D_DSTCACHE_CTLSTAT_DC_FLUSH_FLUSH_DIRTY_3D |
R300_RB3D_DSTCACHE_CTLSTAT_DC_FINISH_SIGNAL);
OUT_CS_REG(R300_ZB_ZCACHE_CTLSTAT,
R300_ZB_ZCACHE_CTLSTAT_ZC_FLUSH_FLUSH_AND_FREE |
R300_ZB_ZCACHE_CTLSTAT_ZC_FREE_FREE);
/* Setup colorbuffer. */
OUT_CS_REG_SEQ(R300_RB3D_COLOROFFSET0, 1);
OUT_CS_RELOC(tex->buffer, 0, 0, RADEON_GEM_DOMAIN_VRAM, 0);
OUT_CS_REG(R300_RB3D_COLORPITCH0, pixpitch |
r300_translate_colorformat(tex->tex.format));
OUT_CS_REG(RB3D_COLOR_CHANNEL_MASK, 0xf);
END_CS;
}
/* Provides pipe_context's "surface_fill". Commonly used for clearing
* buffers. */
static void r300_surface_fill(struct pipe_context* pipe,
struct pipe_surface* dest,
unsigned x, unsigned y,
unsigned w, unsigned h,
unsigned color)
{
struct r300_context* r300 = r300_context(pipe);
CS_LOCALS(r300);
struct r300_capabilities* caps = r300_screen(pipe->screen)->caps;
struct r300_texture* tex = (struct r300_texture*)dest->texture;
int i;
float r, g, b, a, depth;
unsigned pixpitch = tex->stride / tex->tex.block.size;
r = (float)((color >> 16) & 0xff) / 255.0f;
g = (float)((color >> 8) & 0xff) / 255.0f;
b = (float)((color >> 0) & 0xff) / 255.0f;
debug_printf("r300: Filling surface %p at (%d,%d),"
" dimensions %dx%d (pixel pitch %d), color 0x%x\n",
dest, x, y, w, h, pixpitch, color);
/* Fallback? */
if (tex->tex.format != PIPE_FORMAT_A8R8G8B8_UNORM) {
debug_printf("r300: Falling back on surface clear...");
util_surface_fill(pipe, dest, x, y, w, h, color);
return;
}
r300_surface_setup(r300, dest, x, y, w, h);
/* Fragment shader setup */
if (caps->is_r500) {
r500_emit_fragment_shader(r300, &r500_passthrough_fragment_shader);
r300_emit_rs_block_state(r300, &r500_rs_block_clear_state);
} else {
r300_emit_fragment_shader(r300, &r300_passthrough_fragment_shader);
r300_emit_rs_block_state(r300, &r300_rs_block_clear_state);
}
BEGIN_CS(21);
/* Viewport setup */
OUT_CS_REG_SEQ(R300_SE_VPORT_XSCALE, 6);
OUT_CS_32F(1.0);
OUT_CS_32F((float)x);
OUT_CS_32F(1.0);
OUT_CS_32F((float)y);
OUT_CS_32F(1.0);
OUT_CS_32F(0.0);
/* The size of the point we're about to draw, in sixths of pixels */
OUT_CS_REG(R300_GA_POINT_SIZE,
((h * 6) & R300_POINTSIZE_Y_MASK) |
((w * 6) << R300_POINTSIZE_X_SHIFT));
/* XXX Packet3 */
OUT_CS(CP_PACKET3(R200_3D_DRAW_IMMD_2, 8));
OUT_CS(R300_PRIM_TYPE_POINT | R300_PRIM_WALK_RING |
(1 << R300_PRIM_NUM_VERTICES_SHIFT));
OUT_CS_32F(w / 2.0);
OUT_CS_32F(h / 2.0);
/* XXX this should be the depth value to clear to */
OUT_CS_32F(1.0);
OUT_CS_32F(1.0);
OUT_CS_32F(r);
OUT_CS_32F(g);
OUT_CS_32F(b);
OUT_CS_32F(1.0);
/* XXX figure out why this is 0xA and not 0x2 */
OUT_CS_REG(R300_RB3D_DSTCACHE_CTLSTAT, 0xA);
/* XXX OUT_CS_REG(R300_ZB_ZCACHE_CTLSTAT,
R300_ZB_ZCACHE_CTLSTAT_ZC_FLUSH_FLUSH_AND_FREE |
R300_ZB_ZCACHE_CTLSTAT_ZC_FREE_FREE); */
END_CS;
r300->dirty_hw++;
}
static void r300_surface_copy(struct pipe_context* pipe,
struct pipe_surface* dest,
unsigned destx, unsigned desty,
struct pipe_surface* src,
unsigned srcx, unsigned srcy,
unsigned w, unsigned h)
{
struct r300_context* r300 = r300_context(pipe);
CS_LOCALS(r300);
struct r300_texture* srctex = (struct r300_texture*)src->texture;
struct r300_texture* desttex = (struct r300_texture*)dest->texture;
unsigned pixpitch = srctex->stride / srctex->tex.block.size;
debug_printf("r300: Copying surface %p at (%d,%d) to %p at (%d, %d),"
" dimensions %dx%d (pixel pitch %d)\n",
src, srcx, srcy, dest, destx, desty, w, h, pixpitch);
/* if ((srctex == desttex) &&
((destx < srcx + w) || (srcx < destx + w)) &&
((desty < srcy + h) || (srcy < destx + h))) { */
if (TRUE) {
debug_printf("r300: Falling back on surface_copy\n");
return util_surface_copy(pipe, FALSE, dest, destx, desty, src,
srcx, srcy, w, h);
}
}
void r300_init_surface_functions(struct r300_context* r300)
{
r300->context.surface_fill = r300_surface_fill;
r300->context.surface_copy = r300_surface_copy;
}
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