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xf86-video-intel/src/i915_render.c

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/*
* Copyright © 2006 Intel Corporation
*
* 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 AUTHORS OR COPYRIGHT HOLDERS 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:
* Wang Zhenyu <zhenyu.z.wang@intel.com>
* Eric Anholt <eric@anholt.net>
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "xf86.h"
#include "intel.h"
#include "i915_reg.h"
#include "i915_3d.h"
struct formatinfo {
int fmt;
uint32_t card_fmt;
};
struct blendinfo {
Bool dst_alpha;
Bool src_alpha;
uint32_t src_blend;
uint32_t dst_blend;
};
static struct blendinfo i915_blend_op[] = {
/* Clear */
{0, 0, BLENDFACT_ZERO, BLENDFACT_ZERO},
/* Src */
{0, 0, BLENDFACT_ONE, BLENDFACT_ZERO},
/* Dst */
{0, 0, BLENDFACT_ZERO, BLENDFACT_ONE},
/* Over */
{0, 1, BLENDFACT_ONE, BLENDFACT_INV_SRC_ALPHA},
/* OverReverse */
{1, 0, BLENDFACT_INV_DST_ALPHA, BLENDFACT_ONE},
/* In */
{1, 0, BLENDFACT_DST_ALPHA, BLENDFACT_ZERO},
/* InReverse */
{0, 1, BLENDFACT_ZERO, BLENDFACT_SRC_ALPHA},
/* Out */
{1, 0, BLENDFACT_INV_DST_ALPHA, BLENDFACT_ZERO},
/* OutReverse */
{0, 1, BLENDFACT_ZERO, BLENDFACT_INV_SRC_ALPHA},
/* Atop */
{1, 1, BLENDFACT_DST_ALPHA, BLENDFACT_INV_SRC_ALPHA},
/* AtopReverse */
{1, 1, BLENDFACT_INV_DST_ALPHA, BLENDFACT_SRC_ALPHA},
/* Xor */
{1, 1, BLENDFACT_INV_DST_ALPHA, BLENDFACT_INV_SRC_ALPHA},
/* Add */
{0, 0, BLENDFACT_ONE, BLENDFACT_ONE},
};
static struct formatinfo i915_tex_formats[] = {
{PICT_a8, MAPSURF_8BIT | MT_8BIT_A8},
{PICT_a8r8g8b8, MAPSURF_32BIT | MT_32BIT_ARGB8888},
{PICT_x8r8g8b8, MAPSURF_32BIT | MT_32BIT_XRGB8888},
{PICT_a8b8g8r8, MAPSURF_32BIT | MT_32BIT_ABGR8888},
{PICT_x8b8g8r8, MAPSURF_32BIT | MT_32BIT_XBGR8888},
#if XORG_VERSION_CURRENT >= 10699900
{PICT_a2r10g10b10, MAPSURF_32BIT | MT_32BIT_ARGB2101010},
{PICT_a2b10g10r10, MAPSURF_32BIT | MT_32BIT_ABGR2101010},
#endif
{PICT_r5g6b5, MAPSURF_16BIT | MT_16BIT_RGB565},
{PICT_a1r5g5b5, MAPSURF_16BIT | MT_16BIT_ARGB1555},
{PICT_a4r4g4b4, MAPSURF_16BIT | MT_16BIT_ARGB4444},
};
static uint32_t i915_get_blend_cntl(int op, PicturePtr mask,
uint32_t dst_format)
{
uint32_t sblend, dblend;
sblend = i915_blend_op[op].src_blend;
dblend = i915_blend_op[op].dst_blend;
/* If there's no dst alpha channel, adjust the blend op so that we'll
* treat it as always 1.
*/
if (PICT_FORMAT_A(dst_format) == 0 && i915_blend_op[op].dst_alpha) {
if (sblend == BLENDFACT_DST_ALPHA)
sblend = BLENDFACT_ONE;
else if (sblend == BLENDFACT_INV_DST_ALPHA)
sblend = BLENDFACT_ZERO;
}
/* i915 engine reads 8bit color buffer into green channel in cases
like color buffer blending .etc, and also writes back green channel.
So with dst_alpha blend we should use color factor. See spec on
"8-bit rendering" */
if ((dst_format == PICT_a8) && i915_blend_op[op].dst_alpha) {
if (sblend == BLENDFACT_DST_ALPHA)
sblend = BLENDFACT_DST_COLR;
else if (sblend == BLENDFACT_INV_DST_ALPHA)
sblend = BLENDFACT_INV_DST_COLR;
}
/* If the source alpha is being used, then we should only be in a case
* where the source blend factor is 0, and the source blend value is the
* mask channels multiplied by the source picture's alpha.
*/
if (mask && mask->componentAlpha && PICT_FORMAT_RGB(mask->format) &&
i915_blend_op[op].src_alpha) {
if (dblend == BLENDFACT_SRC_ALPHA) {
dblend = BLENDFACT_SRC_COLR;
} else if (dblend == BLENDFACT_INV_SRC_ALPHA) {
dblend = BLENDFACT_INV_SRC_COLR;
}
}
return S6_CBUF_BLEND_ENABLE | S6_COLOR_WRITE_ENABLE |
(BLENDFUNC_ADD << S6_CBUF_BLEND_FUNC_SHIFT) |
(sblend << S6_CBUF_SRC_BLEND_FACT_SHIFT) |
(dblend << S6_CBUF_DST_BLEND_FACT_SHIFT);
}
#define DSTORG_HORT_BIAS(x) ((x)<<20)
#define DSTORG_VERT_BIAS(x) ((x)<<16)
static Bool i915_get_dest_format(PicturePtr dest_picture, uint32_t * dst_format)
{
ScrnInfoPtr scrn;
switch (dest_picture->format) {
case PICT_a8r8g8b8:
case PICT_x8r8g8b8:
*dst_format = COLR_BUF_ARGB8888;
break;
case PICT_r5g6b5:
*dst_format = COLR_BUF_RGB565;
break;
case PICT_a1r5g5b5:
case PICT_x1r5g5b5:
*dst_format = COLR_BUF_ARGB1555;
break;
#if XORG_VERSION_CURRENT >= 10699900
case PICT_a2r10g10b10:
case PICT_x2r10g10b10:
*dst_format = COLR_BUF_ARGB2AAA;
break;
#endif
case PICT_a8:
*dst_format = COLR_BUF_8BIT;
break;
case PICT_a4r4g4b4:
case PICT_x4r4g4b4:
*dst_format = COLR_BUF_ARGB4444;
break;
default:
scrn = xf86Screens[dest_picture->pDrawable->pScreen->myNum];
intel_debug_fallback(scrn,
"Unsupported dest format 0x%x\n",
(int)dest_picture->format);
return FALSE;
}
*dst_format |= DSTORG_HORT_BIAS(0x8) | DSTORG_VERT_BIAS(0x8);
return TRUE;
}
Bool
i915_check_composite(int op,
PicturePtr source_picture,
PicturePtr mask_picture,
PicturePtr dest_picture,
int width, int height)
{
ScrnInfoPtr scrn = xf86Screens[dest_picture->pDrawable->pScreen->myNum];
uint32_t tmp1;
/* Check for unsupported compositing operations. */
if (op >= sizeof(i915_blend_op) / sizeof(i915_blend_op[0])) {
intel_debug_fallback(scrn, "Unsupported Composite op 0x%x\n",
op);
return FALSE;
}
if (mask_picture != NULL && mask_picture->componentAlpha &&
PICT_FORMAT_RGB(mask_picture->format)) {
/* Check if it's component alpha that relies on a source alpha
* and on the source value. We can only get one of those
* into the single source value that we get to blend with.
*/
if (i915_blend_op[op].src_alpha &&
(i915_blend_op[op].src_blend != BLENDFACT_ZERO)) {
if (op != PictOpOver) {
intel_debug_fallback(scrn,
"Component alpha not supported "
"with source alpha and source "
"value blending.\n");
return FALSE;
}
}
}
if (!i915_get_dest_format(dest_picture, &tmp1)) {
intel_debug_fallback(scrn, "Get Color buffer format\n");
return FALSE;
}
if (width > 2048 || height > 2048)
return FALSE;
return TRUE;
}
Bool
i915_check_composite_target(PixmapPtr pixmap)
{
if (pixmap->drawable.width > 2048 || pixmap->drawable.height > 2048)
return FALSE;
if(!intel_check_pitch_3d(pixmap))
return FALSE;
return TRUE;
}
Bool
i915_check_composite_texture(ScreenPtr screen, PicturePtr picture)
{
if (picture->repeatType > RepeatReflect) {
ScrnInfoPtr scrn = xf86Screens[screen->myNum];
intel_debug_fallback(scrn, "Unsupported picture repeat %d\n",
picture->repeatType);
return FALSE;
}
if (picture->filter != PictFilterNearest &&
picture->filter != PictFilterBilinear) {
ScrnInfoPtr scrn = xf86Screens[screen->myNum];
intel_debug_fallback(scrn, "Unsupported filter 0x%x\n",
picture->filter);
return FALSE;
}
if (picture->pSourcePict)
return FALSE;
if (picture->pDrawable) {
int w, h, i;
w = picture->pDrawable->width;
h = picture->pDrawable->height;
if ((w > 2048) || (h > 2048)) {
ScrnInfoPtr scrn = xf86Screens[screen->myNum];
intel_debug_fallback(scrn,
"Picture w/h too large (%dx%d)\n",
w, h);
return FALSE;
}
for (i = 0;
i < sizeof(i915_tex_formats) / sizeof(i915_tex_formats[0]);
i++) {
if (i915_tex_formats[i].fmt == picture->format)
break;
}
if (i == sizeof(i915_tex_formats) / sizeof(i915_tex_formats[0]))
{
ScrnInfoPtr scrn = xf86Screens[screen->myNum];
intel_debug_fallback(scrn, "Unsupported picture format "
"0x%x\n",
(int)picture->format);
return FALSE;
}
return TRUE;
}
return FALSE;
}
static Bool i915_texture_setup(PicturePtr picture, PixmapPtr pixmap, int unit)
{
ScrnInfoPtr scrn = xf86Screens[picture->pDrawable->pScreen->myNum];
intel_screen_private *intel = intel_get_screen_private(scrn);
uint32_t format, pitch, filter;
uint32_t wrap_mode, tiling_bits;
int i;
pitch = intel_pixmap_pitch(pixmap);
intel->scale_units[unit][0] = 1. / pixmap->drawable.width;
intel->scale_units[unit][1] = 1. / pixmap->drawable.height;
for (i = 0; i < sizeof(i915_tex_formats) / sizeof(i915_tex_formats[0]);
i++) {
if (i915_tex_formats[i].fmt == picture->format)
break;
}
if (i == sizeof(i915_tex_formats) / sizeof(i915_tex_formats[0])) {
intel_debug_fallback(scrn, "unknown texture format\n");
return FALSE;
}
format = i915_tex_formats[i].card_fmt;
switch (picture->repeatType) {
case RepeatNone:
wrap_mode = TEXCOORDMODE_CLAMP_BORDER;
break;
case RepeatNormal:
wrap_mode = TEXCOORDMODE_WRAP;
break;
case RepeatPad:
wrap_mode = TEXCOORDMODE_CLAMP_EDGE;
break;
case RepeatReflect:
wrap_mode = TEXCOORDMODE_MIRROR;
break;
default:
FatalError("Unknown repeat type %d\n", picture->repeatType);
}
switch (picture->filter) {
case PictFilterNearest:
filter = (FILTER_NEAREST << SS2_MAG_FILTER_SHIFT) |
(FILTER_NEAREST << SS2_MIN_FILTER_SHIFT);
break;
case PictFilterBilinear:
filter = (FILTER_LINEAR << SS2_MAG_FILTER_SHIFT) |
(FILTER_LINEAR << SS2_MIN_FILTER_SHIFT);
break;
default:
filter = 0;
intel_debug_fallback(scrn, "Bad filter 0x%x\n",
picture->filter);
return FALSE;
}
/* offset filled in at emit time */
if (intel_pixmap_tiled(pixmap)) {
tiling_bits = MS3_TILED_SURFACE;
if (intel_get_pixmap_private(pixmap)->tiling
== I915_TILING_Y)
tiling_bits |= MS3_TILE_WALK;
} else
tiling_bits = 0;
intel->texture[unit] = pixmap;
intel->mapstate[unit * 3 + 0] = 0;
intel->mapstate[unit * 3 + 1] = format |
tiling_bits |
((pixmap->drawable.height - 1) << MS3_HEIGHT_SHIFT) |
((pixmap->drawable.width - 1) << MS3_WIDTH_SHIFT);
intel->mapstate[unit * 3 + 2] = ((pitch / 4) - 1) << MS4_PITCH_SHIFT;
intel->samplerstate[unit * 3 + 0] = (MIPFILTER_NONE <<
SS2_MIP_FILTER_SHIFT);
intel->samplerstate[unit * 3 + 0] |= filter;
intel->samplerstate[unit * 3 + 1] = SS3_NORMALIZED_COORDS;
intel->samplerstate[unit * 3 + 1] |=
wrap_mode << SS3_TCX_ADDR_MODE_SHIFT;
intel->samplerstate[unit * 3 + 1] |=
wrap_mode << SS3_TCY_ADDR_MODE_SHIFT;
intel->samplerstate[unit * 3 + 1] |= unit << SS3_TEXTUREMAP_INDEX_SHIFT;
intel->samplerstate[unit * 3 + 2] = 0x00000000; /* border color */
intel->transform[unit] = picture->transform;
return TRUE;
}
static void
i915_emit_composite_primitive_identity_source(intel_screen_private *intel,
int srcX, int srcY,
int maskX, int maskY,
int dstX, int dstY,
int w, int h)
{
OUT_VERTEX(dstX + w);
OUT_VERTEX(dstY + h);
OUT_VERTEX((srcX + w) * intel->scale_units[0][0]);
OUT_VERTEX((srcY + h) * intel->scale_units[0][1]);
OUT_VERTEX(dstX);
OUT_VERTEX(dstY + h);
OUT_VERTEX(srcX * intel->scale_units[0][0]);
OUT_VERTEX((srcY + h) * intel->scale_units[0][1]);
OUT_VERTEX(dstX);
OUT_VERTEX(dstY);
OUT_VERTEX(srcX * intel->scale_units[0][0]);
OUT_VERTEX(srcY * intel->scale_units[0][1]);
}
static void
i915_emit_composite_primitive_affine_source(intel_screen_private *intel,
int srcX, int srcY,
int maskX, int maskY,
int dstX, int dstY,
int w, int h)
{
float src_x[3], src_y[3];
if (!intel_get_transformed_coordinates(srcX, srcY,
intel->transform[0],
&src_x[0],
&src_y[0]))
return;
if (!intel_get_transformed_coordinates(srcX, srcY + h,
intel->transform[0],
&src_x[1],
&src_y[1]))
return;
if (!intel_get_transformed_coordinates(srcX + w, srcY + h,
intel->transform[0],
&src_x[2],
&src_y[2]))
return;
OUT_VERTEX(dstX + w);
OUT_VERTEX(dstY + h);
OUT_VERTEX(src_x[2] * intel->scale_units[0][0]);
OUT_VERTEX(src_y[2] * intel->scale_units[0][1]);
OUT_VERTEX(dstX);
OUT_VERTEX(dstY + h);
OUT_VERTEX(src_x[1] * intel->scale_units[0][0]);
OUT_VERTEX(src_y[1] * intel->scale_units[0][1]);
OUT_VERTEX(dstX);
OUT_VERTEX(dstY);
OUT_VERTEX(src_x[0] * intel->scale_units[0][0]);
OUT_VERTEX(src_y[0] * intel->scale_units[0][1]);
}
static void
i915_emit_composite_primitive_identity_source_mask(intel_screen_private *intel,
int srcX, int srcY,
int maskX, int maskY,
int dstX, int dstY,
int w, int h)
{
OUT_VERTEX(dstX + w);
OUT_VERTEX(dstY + h);
OUT_VERTEX((srcX + w) * intel->scale_units[0][0]);
OUT_VERTEX((srcY + h) * intel->scale_units[0][1]);
OUT_VERTEX((maskX + w) * intel->scale_units[1][0]);
OUT_VERTEX((maskY + h) * intel->scale_units[1][1]);
OUT_VERTEX(dstX);
OUT_VERTEX(dstY + h);
OUT_VERTEX(srcX * intel->scale_units[0][0]);
OUT_VERTEX((srcY + h) * intel->scale_units[0][1]);
OUT_VERTEX(maskX * intel->scale_units[1][0]);
OUT_VERTEX((maskY + h) * intel->scale_units[1][1]);
OUT_VERTEX(dstX);
OUT_VERTEX(dstY);
OUT_VERTEX(srcX * intel->scale_units[0][0]);
OUT_VERTEX(srcY * intel->scale_units[0][1]);
OUT_VERTEX(maskX * intel->scale_units[1][0]);
OUT_VERTEX(maskY * intel->scale_units[1][1]);
}
static void
i915_emit_composite_primitive(intel_screen_private *intel,
int srcX, int srcY,
int maskX, int maskY,
int dstX, int dstY,
int w, int h)
{
Bool is_affine_src = TRUE, is_affine_mask = TRUE;
int per_vertex;
int tex_unit = 0;
int src_unit = -1, mask_unit = -1;
float src_x[3], src_y[3], src_w[3], mask_x[3], mask_y[3], mask_w[3];
per_vertex = 2; /* dest x/y */
src_unit = tex_unit++;
is_affine_src = intel_transform_is_affine(intel->transform[src_unit]);
if (is_affine_src) {
if (!intel_get_transformed_coordinates(srcX, srcY,
intel->
transform[src_unit],
&src_x[0],
&src_y[0]))
return;
if (!intel_get_transformed_coordinates(srcX, srcY + h,
intel->
transform[src_unit],
&src_x[1],
&src_y[1]))
return;
if (!intel_get_transformed_coordinates(srcX + w, srcY + h,
intel->
transform[src_unit],
&src_x[2],
&src_y[2]))
return;
per_vertex += 2; /* src x/y */
} else {
if (!intel_get_transformed_coordinates_3d(srcX, srcY,
intel->
transform[src_unit],
&src_x[0],
&src_y[0],
&src_w[0]))
return;
if (!intel_get_transformed_coordinates_3d(srcX, srcY + h,
intel->
transform[src_unit],
&src_x[1],
&src_y[1],
&src_w[1]))
return;
if (!intel_get_transformed_coordinates_3d(srcX + w, srcY + h,
intel->
transform[src_unit],
&src_x[2],
&src_y[2],
&src_w[2]))
return;
per_vertex += 4; /* src x/y/z/w */
}
if (intel->render_mask) {
mask_unit = tex_unit++;
is_affine_mask = intel_transform_is_affine(intel->transform[mask_unit]);
if (is_affine_mask) {
if (!intel_get_transformed_coordinates(maskX, maskY,
intel->
transform[mask_unit],
&mask_x[0],
&mask_y[0]))
return;
if (!intel_get_transformed_coordinates(maskX, maskY + h,
intel->
transform[mask_unit],
&mask_x[1],
&mask_y[1]))
return;
if (!intel_get_transformed_coordinates(maskX + w, maskY + h,
intel->
transform[mask_unit],
&mask_x[2],
&mask_y[2]))
return;
per_vertex += 2; /* mask x/y */
} else {
if (!intel_get_transformed_coordinates_3d(maskX, maskY,
intel->
transform[mask_unit],
&mask_x[0],
&mask_y[0],
&mask_w[0]))
return;
if (!intel_get_transformed_coordinates_3d(maskX, maskY + h,
intel->
transform[mask_unit],
&mask_x[1],
&mask_y[1],
&mask_w[1]))
return;
if (!intel_get_transformed_coordinates_3d(maskX + w, maskY + h,
intel->
transform[mask_unit],
&mask_x[2],
&mask_y[2],
&mask_w[2]))
return;
per_vertex += 4; /* mask x/y/z/w */
}
}
OUT_VERTEX(dstX + w);
OUT_VERTEX(dstY + h);
OUT_VERTEX(src_x[2] * intel->scale_units[src_unit][0]);
OUT_VERTEX(src_y[2] * intel->scale_units[src_unit][1]);
if (!is_affine_src) {
OUT_VERTEX(0.0);
OUT_VERTEX(src_w[2]);
}
if (intel->render_mask) {
OUT_VERTEX(mask_x[2] * intel->scale_units[mask_unit][0]);
OUT_VERTEX(mask_y[2] * intel->scale_units[mask_unit][1]);
if (!is_affine_mask) {
OUT_VERTEX(0.0);
OUT_VERTEX(mask_w[2]);
}
}
OUT_VERTEX(dstX);
OUT_VERTEX(dstY + h);
OUT_VERTEX(src_x[1] * intel->scale_units[src_unit][0]);
OUT_VERTEX(src_y[1] * intel->scale_units[src_unit][1]);
if (!is_affine_src) {
OUT_VERTEX(0.0);
OUT_VERTEX(src_w[1]);
}
if (intel->render_mask) {
OUT_VERTEX(mask_x[1] * intel->scale_units[mask_unit][0]);
OUT_VERTEX(mask_y[1] * intel->scale_units[mask_unit][1]);
if (!is_affine_mask) {
OUT_VERTEX(0.0);
OUT_VERTEX(mask_w[1]);
}
}
OUT_VERTEX(dstX);
OUT_VERTEX(dstY);
OUT_VERTEX(src_x[0] * intel->scale_units[src_unit][0]);
OUT_VERTEX(src_y[0] * intel->scale_units[src_unit][1]);
if (!is_affine_src) {
OUT_VERTEX(0.0);
OUT_VERTEX(src_w[0]);
}
if (intel->render_mask) {
OUT_VERTEX(mask_x[0] * intel->scale_units[mask_unit][0]);
OUT_VERTEX(mask_y[0] * intel->scale_units[mask_unit][1]);
if (!is_affine_mask) {
OUT_VERTEX(0.0);
OUT_VERTEX(mask_w[0]);
}
}
}
Bool
i915_prepare_composite(int op, PicturePtr source_picture,
PicturePtr mask_picture, PicturePtr dest_picture,
PixmapPtr source, PixmapPtr mask, PixmapPtr dest)
{
ScrnInfoPtr scrn = xf86Screens[dest_picture->pDrawable->pScreen->myNum];
intel_screen_private *intel = intel_get_screen_private(scrn);
drm_intel_bo *bo_table[] = {
NULL, /* batch_bo */
intel_get_pixmap_bo(dest),
source ? intel_get_pixmap_bo(source) : NULL,
mask ? intel_get_pixmap_bo(mask) : NULL,
};
int tex_unit = 0;
int floats_per_vertex;
intel->render_source_picture = source_picture;
intel->render_source = source;
intel->render_mask_picture = mask_picture;
intel->render_mask = mask;
intel->render_dest_picture = dest_picture;
intel->render_dest = dest;
if (!intel_check_pitch_3d(source))
return FALSE;
if (mask && !intel_check_pitch_3d(mask))
return FALSE;
if (!intel_check_pitch_3d(dest))
return FALSE;
if (!i915_get_dest_format(dest_picture,
&intel->i915_render_state.dst_format))
return FALSE;
if (!intel_get_aperture_space(scrn, bo_table, ARRAY_SIZE(bo_table)))
return FALSE;
intel->needs_render_ca_pass = FALSE;
if (mask_picture != NULL && mask_picture->componentAlpha &&
PICT_FORMAT_RGB(mask_picture->format)) {
/* Check if it's component alpha that relies on a source alpha
* and on the source value. We can only get one of those
* into the single source value that we get to blend with.
*/
if (i915_blend_op[op].src_alpha &&
(i915_blend_op[op].src_blend != BLENDFACT_ZERO)) {
if (op != PictOpOver)
return FALSE;
intel->needs_render_ca_pass = TRUE;
}
}
intel->transform[0] = NULL;
intel->scale_units[0][0] = -1;
intel->scale_units[0][1] = -1;
intel->transform[1] = NULL;
intel->scale_units[1][0] = -1;
intel->scale_units[1][1] = -1;
floats_per_vertex = 2; /* dest x/y */
if (!i915_texture_setup(source_picture, source, tex_unit++)) {
intel_debug_fallback(scrn, "fail to setup src texture\n");
return FALSE;
}
if (intel_transform_is_affine(source_picture->transform))
floats_per_vertex += 2; /* src x/y */
else
floats_per_vertex += 4; /* src x/y/z/w */
if (mask != NULL) {
if (!i915_texture_setup(mask_picture, mask, tex_unit++)) {
intel_debug_fallback(scrn,
"fail to setup mask texture\n");
return FALSE;
}
if (intel_transform_is_affine(mask_picture->transform))
floats_per_vertex += 2; /* mask x/y */
else
floats_per_vertex += 4; /* mask x/y/z/w */
}
intel->i915_render_state.op = op;
if (intel_pixmap_is_dirty(source) || intel_pixmap_is_dirty(mask))
intel_batch_emit_flush(scrn);
intel->needs_render_state_emit = TRUE;
intel->prim_emit = i915_emit_composite_primitive;
if (!mask) {
if (intel->transform[0] == NULL)
intel->prim_emit = i915_emit_composite_primitive_identity_source;
else if (intel_transform_is_affine(intel->transform[0]))
intel->prim_emit = i915_emit_composite_primitive_affine_source;
} else {
if (intel->transform[0] == NULL) {
if (intel->transform[1] == NULL)
intel->prim_emit = i915_emit_composite_primitive_identity_source_mask;
}
}
if (floats_per_vertex != intel->floats_per_vertex) {
intel->floats_per_vertex = floats_per_vertex;
intel->needs_render_vertex_emit = TRUE;
}
return TRUE;
}
static void
i915_composite_emit_shader(intel_screen_private *intel, CARD8 op)
{
PicturePtr mask_picture = intel->render_mask_picture;
PixmapPtr mask = intel->render_mask;
int src_reg, mask_reg;
Bool dest_is_alpha = PIXMAN_FORMAT_RGB(intel->render_dest_picture->format) == 0;
FS_LOCALS();
FS_BEGIN();
/* Declare the registers necessary for our program. */
i915_fs_dcl(FS_T0);
i915_fs_dcl(FS_S0);
if (!mask) {
/* No mask, so load directly to output color */
if (dest_is_alpha)
src_reg = FS_R0;
else
src_reg = FS_OC;
if (intel_transform_is_affine(intel->transform[0]))
i915_fs_texld(src_reg, FS_S0, FS_T0);
else
i915_fs_texldp(src_reg, FS_S0, FS_T0);
if (src_reg != FS_OC) {
if (dest_is_alpha)
i915_fs_mov(FS_OC, i915_fs_operand(src_reg, W, W, W, W));
else
i915_fs_mov(FS_OC, i915_fs_operand_reg(src_reg));
}
} else {
i915_fs_dcl(FS_T1);
i915_fs_dcl(FS_S1);
/* Load the source_picture texel */
if (intel_transform_is_affine(intel->transform[0]))
i915_fs_texld(FS_R0, FS_S0, FS_T0);
else
i915_fs_texldp(FS_R0, FS_S0, FS_T0);
src_reg = FS_R0;
/* Load the mask_picture texel */
if (intel_transform_is_affine(intel->transform[1]))
i915_fs_texld(FS_R1, FS_S1, FS_T1);
else
i915_fs_texldp(FS_R1, FS_S1, FS_T1);
mask_reg = FS_R1;
if (dest_is_alpha) {
i915_fs_mul(FS_OC,
i915_fs_operand(src_reg, W, W, W, W),
i915_fs_operand(mask_reg, W, W, W, W));
} else {
/* If component alpha is active in the mask and the blend
* operation uses the source alpha, then we know we don't
* need the source value (otherwise we would have hit a
* fallback earlier), so we provide the source alpha (src.A *
* mask.X) as output color.
* Conversely, if CA is set and we don't need the source alpha,
* then we produce the source value (src.X * mask.X) and the
* source alpha is unused. Otherwise, we provide the non-CA
* source value (src.X * mask.A).
*/
if (mask_picture->componentAlpha &&
PICT_FORMAT_RGB(mask_picture->format)) {
if (i915_blend_op[op].src_alpha) {
i915_fs_mul(FS_OC,
i915_fs_operand(src_reg, W, W, W, W),
i915_fs_operand_reg(mask_reg));
} else {
i915_fs_mul(FS_OC,
i915_fs_operand_reg(src_reg),
i915_fs_operand_reg(mask_reg));
}
} else {
i915_fs_mul(FS_OC,
i915_fs_operand_reg(src_reg),
i915_fs_operand(mask_reg, W, W, W, W));
}
}
}
FS_END();
}
static void i915_emit_composite_setup(ScrnInfoPtr scrn)
{
intel_screen_private *intel = intel_get_screen_private(scrn);
int op = intel->i915_render_state.op;
PicturePtr mask_picture = intel->render_mask_picture;
PicturePtr dest_picture = intel->render_dest_picture;
PixmapPtr mask = intel->render_mask;
PixmapPtr dest = intel->render_dest;
int tex_count, t;
intel->needs_render_state_emit = FALSE;
IntelEmitInvarientState(scrn);
intel->last_3d = LAST_3D_RENDER;
tex_count = 1 + (mask != NULL);
assert(intel->in_batch_atomic);
if (tex_count != 0) {
OUT_BATCH(_3DSTATE_MAP_STATE | (3 * tex_count));
OUT_BATCH((1 << tex_count) - 1);
for (t = 0; t < tex_count; t++) {
OUT_RELOC_PIXMAP(intel->texture[t], I915_GEM_DOMAIN_SAMPLER, 0, 0);
OUT_BATCH(intel->mapstate[3*t + 1]);
OUT_BATCH(intel->mapstate[3*t + 2]);
}
OUT_BATCH(_3DSTATE_SAMPLER_STATE | (3 * tex_count));
OUT_BATCH((1 << tex_count) - 1);
for (t = 0; t < tex_count; t++) {
OUT_BATCH(intel->samplerstate[3*t + 0]);
OUT_BATCH(intel->samplerstate[3*t + 1]);
OUT_BATCH(intel->samplerstate[3*t + 2]);
}
}
/* BUF_INFO is an implicit flush, so avoid if the target has not changed.
* XXX However for reasons unfathomed, correct rendering in KDE requires
* at least a MI_FLUSH | INHIBIT_RENDER_CACHE_FLUSH here.
*/
if (1 || dest != intel->render_current_dest) {
uint32_t tiling_bits;
if (intel_pixmap_tiled(dest)) {
tiling_bits = BUF_3D_TILED_SURFACE;
if (intel_get_pixmap_private(dest)->tiling
== I915_TILING_Y)
tiling_bits |= BUF_3D_TILE_WALK_Y;
} else
tiling_bits = 0;
OUT_BATCH(_3DSTATE_BUF_INFO_CMD);
OUT_BATCH(BUF_3D_ID_COLOR_BACK | tiling_bits |
BUF_3D_PITCH(intel_pixmap_pitch(dest)));
OUT_RELOC_PIXMAP(dest, I915_GEM_DOMAIN_RENDER,
I915_GEM_DOMAIN_RENDER, 0);
OUT_BATCH(_3DSTATE_DST_BUF_VARS_CMD);
OUT_BATCH(intel->i915_render_state.dst_format);
/* draw rect is unconditional */
OUT_BATCH(_3DSTATE_DRAW_RECT_CMD);
OUT_BATCH(0x00000000);
OUT_BATCH(0x00000000); /* ymin, xmin */
OUT_BATCH(DRAW_YMAX(dest->drawable.height - 1) |
DRAW_XMAX(dest->drawable.width - 1));
/* yorig, xorig (relate to color buffer?) */
OUT_BATCH(0x00000000);
intel->render_current_dest = dest;
}
{
uint32_t ss2;
ss2 = ~0;
ss2 &= ~S2_TEXCOORD_FMT(0, TEXCOORDFMT_NOT_PRESENT);
ss2 |= S2_TEXCOORD_FMT(0,
intel_transform_is_affine(intel->transform[0]) ?
TEXCOORDFMT_2D : TEXCOORDFMT_4D);
if (mask) {
ss2 &= ~S2_TEXCOORD_FMT(1, TEXCOORDFMT_NOT_PRESENT);
ss2 |= S2_TEXCOORD_FMT(1,
intel_transform_is_affine(intel->transform[1]) ?
TEXCOORDFMT_2D : TEXCOORDFMT_4D);
}
if (intel->needs_render_ca_pass) {
OUT_BATCH(_3DSTATE_LOAD_STATE_IMMEDIATE_1 | I1_LOAD_S(2) | 0);
OUT_BATCH(ss2);
} else {
OUT_BATCH(_3DSTATE_LOAD_STATE_IMMEDIATE_1 | I1_LOAD_S(2) | I1_LOAD_S(6) | 1);
OUT_BATCH(ss2);
OUT_BATCH(i915_get_blend_cntl(op, mask_picture, dest_picture->format));
}
}
if (! intel->needs_render_ca_pass)
i915_composite_emit_shader(intel, op);
}
void
i915_composite(PixmapPtr dest, int srcX, int srcY, int maskX, int maskY,
int dstX, int dstY, int w, int h)
{
ScrnInfoPtr scrn = xf86Screens[dest->drawable.pScreen->myNum];
intel_screen_private *intel = intel_get_screen_private(scrn);
/* 28 + 16 + 10 + 20 + 32 + 16 */
intel_batch_start_atomic(scrn, 150);
if (intel->needs_render_state_emit)
i915_emit_composite_setup(scrn);
if (intel->needs_render_vertex_emit ||
intel_vertex_space(intel) < 3*4*intel->floats_per_vertex) {
i915_vertex_flush(intel);
if (intel_vertex_space(intel) < 256) {
intel_next_vertex(intel);
OUT_BATCH(_3DSTATE_LOAD_STATE_IMMEDIATE_1 |
I1_LOAD_S(0) | I1_LOAD_S(1) | 1);
OUT_RELOC(intel->vertex_bo, I915_GEM_DOMAIN_VERTEX, 0, 0);
OUT_BATCH((intel->floats_per_vertex << S1_VERTEX_WIDTH_SHIFT) |
(intel->floats_per_vertex << S1_VERTEX_PITCH_SHIFT));
intel->vertex_index = 0;
} else if (intel->floats_per_vertex != intel->last_floats_per_vertex){
OUT_BATCH(_3DSTATE_LOAD_STATE_IMMEDIATE_1 |
I1_LOAD_S(1) | 0);
OUT_BATCH((intel->floats_per_vertex << S1_VERTEX_WIDTH_SHIFT) |
(intel->floats_per_vertex << S1_VERTEX_PITCH_SHIFT));
intel->vertex_index =
(intel->vertex_used + intel->floats_per_vertex - 1) / intel->floats_per_vertex;
intel->vertex_used = intel->vertex_index * intel->floats_per_vertex;
}
intel->last_floats_per_vertex = intel->floats_per_vertex;
intel->needs_render_vertex_emit = FALSE;
}
if (intel->prim_offset == 0) {
if (intel->needs_render_ca_pass) {
OUT_BATCH(_3DSTATE_LOAD_STATE_IMMEDIATE_1 | I1_LOAD_S(6) | 0);
OUT_BATCH(i915_get_blend_cntl(PictOpOutReverse,
intel->render_mask_picture,
intel->render_dest_picture->format));
i915_composite_emit_shader(intel, PictOpOutReverse);
}
intel->prim_offset = intel->batch_used;
OUT_BATCH(PRIM3D_RECTLIST | PRIM3D_INDIRECT_SEQUENTIAL);
OUT_BATCH(intel->vertex_index);
}
intel->vertex_count += 3;
intel->prim_emit(intel,
srcX, srcY,
maskX, maskY,
dstX, dstY,
w, h);
intel_batch_end_atomic(scrn);
}
void
i915_vertex_flush(intel_screen_private *intel)
{
if (intel->prim_offset == 0)
return;
intel->batch_ptr[intel->prim_offset] |= intel->vertex_count;
intel->prim_offset = 0;
if (intel->needs_render_ca_pass) {
OUT_BATCH(_3DSTATE_LOAD_STATE_IMMEDIATE_1 | I1_LOAD_S(6) | 0);
OUT_BATCH(i915_get_blend_cntl(PictOpAdd,
intel->render_mask_picture,
intel->render_dest_picture->format));
i915_composite_emit_shader(intel, PictOpAdd);
OUT_BATCH(PRIM3D_RECTLIST | PRIM3D_INDIRECT_SEQUENTIAL | intel->vertex_count);
OUT_BATCH(intel->vertex_index);
}
intel->vertex_index += intel->vertex_count;
intel->vertex_count = 0;
}
void
i915_batch_commit_notify(intel_screen_private *intel)
{
intel->needs_render_state_emit = TRUE;
intel->render_current_dest = NULL;
intel->last_floats_per_vertex = 0;
}
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