diff options
Diffstat (limited to 'src/gallium/state_trackers/xorg/xorg_composite.c')
| -rw-r--r-- | src/gallium/state_trackers/xorg/xorg_composite.c | 1019 |
1 files changed, 1019 insertions, 0 deletions
diff --git a/src/gallium/state_trackers/xorg/xorg_composite.c b/src/gallium/state_trackers/xorg/xorg_composite.c new file mode 100644 index 0000000000..15c955450d --- /dev/null +++ b/src/gallium/state_trackers/xorg/xorg_composite.c @@ -0,0 +1,1019 @@ +#include "xorg_composite.h" + +#include "xorg_exa_tgsi.h" + +#include "cso_cache/cso_context.h" +#include "util/u_draw_quad.h" +#include "util/u_math.h" + +#include "pipe/p_inlines.h" + +struct xorg_composite_blend { + int op:8; + + unsigned rgb_src_factor:5; /**< PIPE_BLENDFACTOR_x */ + unsigned rgb_dst_factor:5; /**< PIPE_BLENDFACTOR_x */ + + unsigned alpha_src_factor:5; /**< PIPE_BLENDFACTOR_x */ + unsigned alpha_dst_factor:5; /**< PIPE_BLENDFACTOR_x */ +}; + +#define BLEND_OP_OVER 3 +static const struct xorg_composite_blend xorg_blends[] = { + { PictOpClear, + PIPE_BLENDFACTOR_CONST_COLOR, PIPE_BLENDFACTOR_CONST_ALPHA, + PIPE_BLENDFACTOR_ZERO, PIPE_BLENDFACTOR_ZERO }, + + { PictOpSrc, + PIPE_BLENDFACTOR_ONE, PIPE_BLENDFACTOR_ONE, + PIPE_BLENDFACTOR_ZERO, PIPE_BLENDFACTOR_ZERO }, + + { PictOpDst, + PIPE_BLENDFACTOR_ZERO, PIPE_BLENDFACTOR_ZERO, + PIPE_BLENDFACTOR_ONE, PIPE_BLENDFACTOR_ONE }, + + { PictOpOver, + PIPE_BLENDFACTOR_SRC_ALPHA, PIPE_BLENDFACTOR_ONE, + PIPE_BLENDFACTOR_INV_SRC_ALPHA, PIPE_BLENDFACTOR_INV_SRC_ALPHA }, + + { PictOpOverReverse, + PIPE_BLENDFACTOR_SRC_ALPHA, PIPE_BLENDFACTOR_ONE, + PIPE_BLENDFACTOR_INV_SRC_ALPHA, PIPE_BLENDFACTOR_INV_SRC_ALPHA }, +}; + + +static INLINE void +pixel_to_float4(Pixel pixel, float *color) +{ + CARD32 r, g, b, a; + + a = (pixel >> 24) & 0xff; + r = (pixel >> 16) & 0xff; + g = (pixel >> 8) & 0xff; + b = (pixel >> 0) & 0xff; + color[0] = ((float)r) / 255.; + color[1] = ((float)g) / 255.; + color[2] = ((float)b) / 255.; + color[3] = ((float)a) / 255.; +} + +static INLINE void +render_pixel_to_float4(PictFormatPtr format, + CARD32 pixel, float *color) +{ + CARD32 r, g, b, a; + + debug_assert(format->type == PictTypeDirect); + + r = (pixel >> format->direct.red) & format->direct.redMask; + g = (pixel >> format->direct.green) & format->direct.greenMask; + b = (pixel >> format->direct.blue) & format->direct.blueMask; + a = (pixel >> format->direct.alpha) & format->direct.alphaMask; + color[0] = ((float)r) / ((float)format->direct.redMask); + color[1] = ((float)g) / ((float)format->direct.greenMask); + color[2] = ((float)b) / ((float)format->direct.blueMask); + color[3] = ((float)a) / ((float)format->direct.alphaMask); +} + +struct acceleration_info { + int op : 16; + int with_mask : 1; + int component_alpha : 1; +}; +static const struct acceleration_info accelerated_ops[] = { + {PictOpClear, 1, 0}, + {PictOpSrc, 1, 0}, + {PictOpDst, 1, 0}, + {PictOpOver, 1, 0}, + {PictOpOverReverse, 1, 0}, + {PictOpIn, 1, 0}, + {PictOpInReverse, 1, 0}, + {PictOpOut, 1, 0}, + {PictOpOutReverse, 1, 0}, + {PictOpAtop, 1, 0}, + {PictOpAtopReverse, 1, 0}, + {PictOpXor, 1, 0}, + {PictOpAdd, 1, 0}, + {PictOpSaturate, 1, 0}, +}; + +static struct xorg_composite_blend +blend_for_op(int op) +{ + const int num_blends = + sizeof(xorg_blends)/sizeof(struct xorg_composite_blend); + int i; + + for (i = 0; i < num_blends; ++i) { + if (xorg_blends[i].op == op) + return xorg_blends[i]; + } + return xorg_blends[BLEND_OP_OVER]; +} + +static INLINE int +render_repeat_to_gallium(int mode) +{ + switch(mode) { + case RepeatNone: + return PIPE_TEX_WRAP_CLAMP; + case RepeatNormal: + return PIPE_TEX_WRAP_REPEAT; + case RepeatReflect: + return PIPE_TEX_WRAP_MIRROR_REPEAT; + case RepeatPad: + return PIPE_TEX_WRAP_CLAMP_TO_EDGE; + default: + debug_printf("Unsupported repeat mode\n"); + } + return PIPE_TEX_WRAP_REPEAT; +} + + +static INLINE void +setup_vertex0(float vertex[2][4], float x, float y, + float color[4]) +{ + vertex[0][0] = x; + vertex[0][1] = y; + vertex[0][2] = 0.f; /*z*/ + vertex[0][3] = 1.f; /*w*/ + + vertex[1][0] = color[0]; /*r*/ + vertex[1][1] = color[1]; /*g*/ + vertex[1][2] = color[2]; /*b*/ + vertex[1][3] = color[3]; /*a*/ +} + +static struct pipe_buffer * +setup_vertex_data0(struct exa_context *ctx, + int srcX, int srcY, int maskX, int maskY, + int dstX, int dstY, int width, int height) +{ + float vertices[4][2][4]; + + /* 1st vertex */ + setup_vertex0(vertices[0], dstX, dstY, + ctx->solid_color); + /* 2nd vertex */ + setup_vertex0(vertices[1], dstX + width, dstY, + ctx->solid_color); + /* 3rd vertex */ + setup_vertex0(vertices[2], dstX + width, dstY + height, + ctx->solid_color); + /* 4th vertex */ + setup_vertex0(vertices[3], dstX, dstY + height, + ctx->solid_color); + + return pipe_user_buffer_create(ctx->pipe->screen, + vertices, + sizeof(vertices)); +} + +static INLINE void +setup_vertex1(float vertex[2][4], float x, float y, float s, float t) +{ + vertex[0][0] = x; + vertex[0][1] = y; + vertex[0][2] = 0.f; /*z*/ + vertex[0][3] = 1.f; /*w*/ + + vertex[1][0] = s; /*s*/ + vertex[1][1] = t; /*t*/ + vertex[1][2] = 0.f; /*r*/ + vertex[1][3] = 1.f; /*q*/ +} + +static struct pipe_buffer * +setup_vertex_data1(struct exa_context *ctx, + int srcX, int srcY, int maskX, int maskY, + int dstX, int dstY, int width, int height) +{ + float vertices[4][2][4]; + float s0, t0, s1, t1; + struct pipe_texture *src = ctx->bound_textures[0]; + + s0 = srcX / src->width[0]; + s1 = srcX + width / src->width[0]; + t0 = srcY / src->height[0]; + t1 = srcY + height / src->height[0]; + + /* 1st vertex */ + setup_vertex1(vertices[0], dstX, dstY, + s0, t0); + /* 2nd vertex */ + setup_vertex1(vertices[1], dstX + width, dstY, + s1, t0); + /* 3rd vertex */ + setup_vertex1(vertices[2], dstX + width, dstY + height, + s1, t1); + /* 4th vertex */ + setup_vertex1(vertices[3], dstX, dstY + height, + s0, t1); + + return pipe_user_buffer_create(ctx->pipe->screen, + vertices, + sizeof(vertices)); +} + +static struct pipe_buffer * +setup_vertex_data_tex(struct exa_context *ctx, + float x0, float y0, float x1, float y1, + float s0, float t0, float s1, float t1, + float z) +{ + float vertices[4][2][4]; + + /* 1st vertex */ + setup_vertex1(vertices[0], x0, y0, + s0, t0); + /* 2nd vertex */ + setup_vertex1(vertices[1], x1, y0, + s1, t0); + /* 3rd vertex */ + setup_vertex1(vertices[2], x1, y1, + s1, t1); + /* 4th vertex */ + setup_vertex1(vertices[3], x0, y1, + s0, t1); + + return pipe_user_buffer_create(ctx->pipe->screen, + vertices, + sizeof(vertices)); +} + + + +static INLINE void +setup_vertex2(float vertex[3][4], float x, float y, + float s0, float t0, float s1, float t1) +{ + vertex[0][0] = x; + vertex[0][1] = y; + vertex[0][2] = 0.f; /*z*/ + vertex[0][3] = 1.f; /*w*/ + + vertex[1][0] = s0; /*s*/ + vertex[1][1] = t0; /*t*/ + vertex[1][2] = 0.f; /*r*/ + vertex[1][3] = 1.f; /*q*/ + + vertex[2][0] = s1; /*s*/ + vertex[2][1] = t1; /*t*/ + vertex[2][2] = 0.f; /*r*/ + vertex[2][3] = 1.f; /*q*/ +} + +static struct pipe_buffer * +setup_vertex_data2(struct exa_context *ctx, + int srcX, int srcY, int maskX, int maskY, + int dstX, int dstY, int width, int height) +{ + float vertices[4][3][4]; + float st0[4], st1[4]; + struct pipe_texture *src = ctx->bound_textures[0]; + struct pipe_texture *mask = ctx->bound_textures[0]; + + st0[0] = srcX / src->width[0]; + st0[1] = srcY / src->height[0]; + st0[2] = srcX + width / src->width[0]; + st0[3] = srcY + height / src->height[0]; + + st1[0] = maskX / mask->width[0]; + st1[1] = maskY / mask->height[0]; + st1[2] = maskX + width / mask->width[0]; + st1[3] = maskY + height / mask->height[0]; + + /* 1st vertex */ + setup_vertex2(vertices[0], dstX, dstY, + st0[0], st0[1], st1[0], st1[1]); + /* 2nd vertex */ + setup_vertex2(vertices[1], dstX + width, dstY, + st0[2], st0[1], st1[2], st1[1]); + /* 3rd vertex */ + setup_vertex2(vertices[2], dstX + width, dstY + height, + st0[2], st0[3], st1[2], st1[3]); + /* 4th vertex */ + setup_vertex2(vertices[3], dstX, dstY + height, + st0[0], st0[3], st1[0], st1[3]); + + return pipe_user_buffer_create(ctx->pipe->screen, + vertices, + sizeof(vertices)); +} + +boolean xorg_composite_accelerated(int op, + PicturePtr pSrcPicture, + PicturePtr pMaskPicture, + PicturePtr pDstPicture) +{ + unsigned i; + unsigned accel_ops_count = + sizeof(accelerated_ops)/sizeof(struct acceleration_info); + + + /*FIXME: currently accel is disabled */ + return FALSE; + + if (pSrcPicture) { + /* component alpha not supported */ + if (pSrcPicture->componentAlpha) + return FALSE; + /* fills not supported */ + if (pSrcPicture->pSourcePict) + return FALSE; + } + + for (i = 0; i < accel_ops_count; ++i) { + if (op == accelerated_ops[i].op) { + if (pMaskPicture && !accelerated_ops[i].with_mask) + return FALSE; + return TRUE; + } + } + return FALSE; +} + +static void +bind_clip_state(struct exa_context *exa) +{ +} + +static void +bind_framebuffer_state(struct exa_context *exa, struct exa_pixmap_priv *pDst) +{ + unsigned i; + struct pipe_framebuffer_state state; + struct pipe_surface *surface = exa_gpu_surface(exa, pDst); + memset(&state, 0, sizeof(struct pipe_framebuffer_state)); + + state.width = pDst->tex->width[0]; + state.height = pDst->tex->height[0]; + + state.nr_cbufs = 1; + state.cbufs[0] = surface; + for (i = 1; i < PIPE_MAX_COLOR_BUFS; ++i) + state.cbufs[i] = 0; + + /* currently we don't use depth/stencil */ + state.zsbuf = 0; + + cso_set_framebuffer(exa->cso, &state); +} + +enum AxisOrientation { + Y0_BOTTOM, + Y0_TOP +}; + +static void +set_viewport(struct exa_context *exa, int width, int height, + enum AxisOrientation orientation) +{ + struct pipe_viewport_state viewport; + float y_scale = (orientation == Y0_BOTTOM) ? -2.f : 2.f; + + viewport.scale[0] = width / 2.f; + viewport.scale[1] = height / y_scale; + viewport.scale[2] = 1.0; + viewport.scale[3] = 1.0; + viewport.translate[0] = width / 2.f; + viewport.translate[1] = height / 2.f; + viewport.translate[2] = 0.0; + viewport.translate[3] = 0.0; + + cso_set_viewport(exa->cso, &viewport); +} + +static void +bind_viewport_state(struct exa_context *exa, struct exa_pixmap_priv *pDst) +{ + int width = pDst->tex->width[0]; + int height = pDst->tex->height[0]; + + debug_printf("Bind viewport (%d, %d)\n", width, height); + + set_viewport(exa, width, height, Y0_TOP); +} + +static void +bind_blend_state(struct exa_context *exa, int op, + PicturePtr pSrcPicture, PicturePtr pMaskPicture) +{ + boolean component_alpha = (pSrcPicture) ? + pSrcPicture->componentAlpha : FALSE; + struct xorg_composite_blend blend_opt; + struct pipe_blend_state blend; + + if (component_alpha) { + op = PictOpOver; + } + blend_opt = blend_for_op(op); + + memset(&blend, 0, sizeof(struct pipe_blend_state)); + blend.blend_enable = 1; + blend.colormask |= PIPE_MASK_R; + blend.colormask |= PIPE_MASK_G; + blend.colormask |= PIPE_MASK_B; + blend.colormask |= PIPE_MASK_A; + + blend.rgb_src_factor = blend_opt.rgb_src_factor; + blend.alpha_src_factor = blend_opt.alpha_src_factor; + blend.rgb_dst_factor = blend_opt.rgb_dst_factor; + blend.alpha_dst_factor = blend_opt.alpha_dst_factor; + + cso_set_blend(exa->cso, &blend); +} + +static void +bind_rasterizer_state(struct exa_context *exa) +{ + struct pipe_rasterizer_state raster; + memset(&raster, 0, sizeof(struct pipe_rasterizer_state)); + raster.gl_rasterization_rules = 1; + cso_set_rasterizer(exa->cso, &raster); +} + +static void +bind_shaders(struct exa_context *exa, int op, + PicturePtr pSrcPicture, PicturePtr pMaskPicture) +{ + unsigned vs_traits = 0, fs_traits = 0; + struct xorg_shader shader; + + exa->has_solid_color = FALSE; + + if (pSrcPicture) { + if (pSrcPicture->pSourcePict) { + if (pSrcPicture->pSourcePict->type == SourcePictTypeSolidFill) { + fs_traits |= FS_SOLID_FILL; + vs_traits |= VS_SOLID_FILL; + render_pixel_to_float4(pSrcPicture->pFormat, + pSrcPicture->pSourcePict->solidFill.color, + exa->solid_color); + exa->has_solid_color = TRUE; + } else { + debug_assert("!gradients not supported"); + } + } else { + fs_traits |= FS_COMPOSITE; + vs_traits |= VS_COMPOSITE; + } + } + + if (pMaskPicture) { + vs_traits |= VS_MASK; + fs_traits |= FS_MASK; + } + + shader = xorg_shaders_get(exa->shaders, vs_traits, fs_traits); + cso_set_vertex_shader_handle(exa->cso, shader.vs); + cso_set_fragment_shader_handle(exa->cso, shader.fs); +} + + +static void +bind_samplers(struct exa_context *exa, int op, + PicturePtr pSrcPicture, PicturePtr pMaskPicture, + PicturePtr pDstPicture, + struct exa_pixmap_priv *pSrc, + struct exa_pixmap_priv *pMask, + struct exa_pixmap_priv *pDst) +{ + struct pipe_sampler_state *samplers[PIPE_MAX_SAMPLERS]; + struct pipe_sampler_state src_sampler, mask_sampler; + + exa->num_bound_samplers = 0; + + memset(&src_sampler, 0, sizeof(struct pipe_sampler_state)); + memset(&mask_sampler, 0, sizeof(struct pipe_sampler_state)); + + if (pSrcPicture && pSrc) { + unsigned src_wrap = render_repeat_to_gallium( + pSrcPicture->repeatType); + src_sampler.wrap_s = src_wrap; + src_sampler.wrap_t = src_wrap; + src_sampler.min_img_filter = PIPE_TEX_MIPFILTER_NEAREST; + src_sampler.mag_img_filter = PIPE_TEX_MIPFILTER_NEAREST; + src_sampler.normalized_coords = 1; + samplers[0] = &src_sampler; + exa->bound_textures[0] = pSrc->tex; + ++exa->num_bound_samplers; + } + + if (pMaskPicture && pMask) { + unsigned mask_wrap = render_repeat_to_gallium( + pMaskPicture->repeatType); + mask_sampler.wrap_s = mask_wrap; + mask_sampler.wrap_t = mask_wrap; + mask_sampler.min_img_filter = PIPE_TEX_MIPFILTER_NEAREST; + mask_sampler.mag_img_filter = PIPE_TEX_MIPFILTER_NEAREST; + mask_sampler.normalized_coords = 1; + samplers[1] = &mask_sampler; + exa->bound_textures[1] = pMask->tex; + ++exa->num_bound_samplers; + } + + cso_set_samplers(exa->cso, exa->num_bound_samplers, + (const struct pipe_sampler_state **)samplers); + cso_set_sampler_textures(exa->cso, exa->num_bound_samplers, + exa->bound_textures); +} + +static void +setup_vs_constant_buffer(struct exa_context *exa, + int width, int height) +{ + const int param_bytes = 8 * sizeof(float); + float vs_consts[8] = { + 2.f/width, 2.f/height, 1, 1, + -1, -1, 0, 0 + }; + struct pipe_constant_buffer *cbuf = &exa->vs_const_buffer; + + pipe_buffer_reference(&cbuf->buffer, NULL); + cbuf->buffer = pipe_buffer_create(exa->pipe->screen, 16, + PIPE_BUFFER_USAGE_CONSTANT, + param_bytes); + + if (cbuf->buffer) { + pipe_buffer_write(exa->pipe->screen, cbuf->buffer, + 0, param_bytes, vs_consts); + } + exa->pipe->set_constant_buffer(exa->pipe, PIPE_SHADER_VERTEX, 0, cbuf); +} + + +static void +setup_fs_constant_buffer(struct exa_context *exa) +{ + const int param_bytes = 4 * sizeof(float); + float fs_consts[8] = { + 0, 0, 0, 1, + }; + struct pipe_constant_buffer *cbuf = &exa->fs_const_buffer; + + pipe_buffer_reference(&cbuf->buffer, NULL); + cbuf->buffer = pipe_buffer_create(exa->pipe->screen, 16, + PIPE_BUFFER_USAGE_CONSTANT, + param_bytes); + + if (cbuf->buffer) { + pipe_buffer_write(exa->pipe->screen, cbuf->buffer, + 0, param_bytes, fs_consts); + } + exa->pipe->set_constant_buffer(exa->pipe, PIPE_SHADER_FRAGMENT, 0, cbuf); +} + +static void +setup_constant_buffers(struct exa_context *exa, struct exa_pixmap_priv *pDst) +{ + int width = pDst->tex->width[0]; + int height = pDst->tex->height[0]; + + setup_vs_constant_buffer(exa, width, height); + setup_fs_constant_buffer(exa); +} + +boolean xorg_composite_bind_state(struct exa_context *exa, + int op, + PicturePtr pSrcPicture, + PicturePtr pMaskPicture, + PicturePtr pDstPicture, + struct exa_pixmap_priv *pSrc, + struct exa_pixmap_priv *pMask, + struct exa_pixmap_priv *pDst) +{ + bind_framebuffer_state(exa, pDst); + bind_viewport_state(exa, pDst); + bind_blend_state(exa, op, pSrcPicture, pMaskPicture); + bind_rasterizer_state(exa); + bind_shaders(exa, op, pSrcPicture, pMaskPicture); + bind_samplers(exa, op, pSrcPicture, pMaskPicture, + pDstPicture, pSrc, pMask, pDst); + bind_clip_state(exa); + setup_constant_buffers(exa, pDst); + + return FALSE; +} + +void xorg_composite(struct exa_context *exa, + struct exa_pixmap_priv *dst, + int srcX, int srcY, int maskX, int maskY, + int dstX, int dstY, int width, int height) +{ + struct pipe_context *pipe = exa->pipe; + struct pipe_buffer *buf = 0; + + if (exa->num_bound_samplers == 0 ) { /* solid fill */ + buf = setup_vertex_data0(exa, + srcX, srcY, maskX, maskY, + dstX, dstY, width, height); + } else if (exa->num_bound_samplers == 1 ) /* src */ + buf = setup_vertex_data1(exa, + srcX, srcY, maskX, maskY, + dstX, dstY, width, height); + else if (exa->num_bound_samplers == 2) /* src + mask */ + buf = setup_vertex_data2(exa, + srcX, srcY, maskX, maskY, + dstX, dstY, width, height); + else if (exa->num_bound_samplers == 3) { /* src + mask + dst */ + debug_assert(!"src/mask/dst not handled right now"); +#if 0 + buf = setup_vertex_data2(exa, + srcX, srcY, maskX, maskY, + dstX, dstY, width, height); +#endif + } + + if (buf) { + int num_attribs = 1; /*pos*/ + num_attribs += exa->num_bound_samplers; + if (exa->has_solid_color) + ++num_attribs; + + util_draw_vertex_buffer(pipe, buf, 0, + PIPE_PRIM_TRIANGLE_FAN, + 4, /* verts */ + num_attribs); /* attribs/vert */ + + pipe_buffer_reference(&buf, NULL); + } +} + +boolean xorg_solid_bind_state(struct exa_context *exa, + struct exa_pixmap_priv *pixmap, + Pixel fg) +{ + unsigned vs_traits, fs_traits; + struct xorg_shader shader; + + pixel_to_float4(fg, exa->solid_color); + exa->has_solid_color = TRUE; + + exa->solid_color[3] = 1.f; + + debug_printf("Color Pixel=(%d, %d, %d, %d), RGBA=(%f, %f, %f, %f)\n", + (fg >> 24) & 0xff, (fg >> 16) & 0xff, + (fg >> 8) & 0xff, (fg >> 0) & 0xff, + exa->solid_color[0], exa->solid_color[1], + exa->solid_color[2], exa->solid_color[3]); + +#if 0 + exa->solid_color[0] = 1.f; + exa->solid_color[1] = 0.f; + exa->solid_color[2] = 0.f; + exa->solid_color[3] = 1.f; +#endif + + vs_traits = VS_SOLID_FILL; + fs_traits = FS_SOLID_FILL; + + bind_framebuffer_state(exa, pixmap); + bind_viewport_state(exa, pixmap); + bind_rasterizer_state(exa); + bind_blend_state(exa, PictOpSrc, NULL, NULL); + setup_constant_buffers(exa, pixmap); + bind_clip_state(exa); + + shader = xorg_shaders_get(exa->shaders, vs_traits, fs_traits); + cso_set_vertex_shader_handle(exa->cso, shader.vs); + cso_set_fragment_shader_handle(exa->cso, shader.fs); + + return FALSE; +} + +void xorg_solid(struct exa_context *exa, + struct exa_pixmap_priv *pixmap, + int x0, int y0, int x1, int y1) +{ + struct pipe_context *pipe = exa->pipe; + struct pipe_buffer *buf = 0; + float vertices[4][2][4]; + + x0 = 10; y0 = 10; + x1 = 300; y1 = 300; + + /* 1st vertex */ + setup_vertex0(vertices[0], x0, y0, + exa->solid_color); + /* 2nd vertex */ + setup_vertex0(vertices[1], x1, y0, + exa->solid_color); + /* 3rd vertex */ + setup_vertex0(vertices[2], x1, y1, + exa->solid_color); + /* 4th vertex */ + setup_vertex0(vertices[3], x0, y1, + exa->solid_color); + + buf = pipe_user_buffer_create(exa->pipe->screen, + vertices, + sizeof(vertices)); + + + if (buf) { + debug_printf("Drawing buf is %p\n", buf); + util_draw_vertex_buffer(pipe, buf, 0, + PIPE_PRIM_TRIANGLE_FAN, + 4, /* verts */ + 2); /* attribs/vert */ + + pipe_buffer_reference(&buf, NULL); + } +} + + +static INLINE void shift_rectx(float coords[4], + const float *bounds, + const float shift) +{ + coords[0] += shift; + coords[2] -= shift; + if (bounds) { + coords[2] = MIN2(coords[2], bounds[2]); + /* bound x/y + width/height */ + if ((coords[0] + coords[2]) > (bounds[0] + bounds[2])) { + coords[2] = (bounds[0] + bounds[2]) - coords[0]; + } + } +} + +static INLINE void shift_recty(float coords[4], + const float *bounds, + const float shift) +{ + coords[1] += shift; + coords[3] -= shift; + if (bounds) { + coords[3] = MIN2(coords[3], bounds[3]); + if ((coords[1] + coords[3]) > (bounds[1] + bounds[3])) { + coords[3] = (bounds[1] + bounds[3]) - coords[1]; + } + } +} + +static INLINE void bound_rect(float coords[4], + const float bounds[4], + float shift[4]) +{ + /* if outside the bounds */ + if (coords[0] > (bounds[0] + bounds[2]) || + coords[1] > (bounds[1] + bounds[3]) || + (coords[0] + coords[2]) < bounds[0] || + (coords[1] + coords[3]) < bounds[1]) { + coords[0] = 0.f; + coords[1] = 0.f; + coords[2] = 0.f; + coords[3] = 0.f; + shift[0] = 0.f; + shift[1] = 0.f; + return; + } + + /* bound x */ + if (coords[0] < bounds[0]) { + shift[0] = bounds[0] - coords[0]; + coords[2] -= shift[0]; + coords[0] = bounds[0]; + } else + shift[0] = 0.f; + + /* bound y */ + if (coords[1] < bounds[1]) { + shift[1] = bounds[1] - coords[1]; + coords[3] -= shift[1]; + coords[1] = bounds[1]; + } else + shift[1] = 0.f; + + shift[2] = bounds[2] - coords[2]; + shift[3] = bounds[3] - coords[3]; + /* bound width/height */ + coords[2] = MIN2(coords[2], bounds[2]); + coords[3] = MIN2(coords[3], bounds[3]); + + /* bound x/y + width/height */ + if ((coords[0] + coords[2]) > (bounds[0] + bounds[2])) { + coords[2] = (bounds[0] + bounds[2]) - coords[0]; + } + if ((coords[1] + coords[3]) > (bounds[1] + bounds[3])) { + coords[3] = (bounds[1] + bounds[3]) - coords[1]; + } + + /* if outside the bounds */ + if ((coords[0] + coords[2]) < bounds[0] || + (coords[1] + coords[3]) < bounds[1]) { + coords[0] = 0.f; + coords[1] = 0.f; + coords[2] = 0.f; + coords[3] = 0.f; + return; + } +} + +static INLINE void sync_size(float *src_loc, float *dst_loc) +{ + src_loc[2] = MIN2(src_loc[2], dst_loc[2]); + src_loc[3] = MIN2(src_loc[3], dst_loc[3]); + dst_loc[2] = src_loc[2]; + dst_loc[3] = src_loc[3]; +} + + +static void renderer_copy_texture(struct exa_context *exa, + struct pipe_texture *src, + float sx1, float sy1, + float sx2, float sy2, + struct pipe_texture *dst, + float dx1, float dy1, + float dx2, float dy2) +{ + struct pipe_context *pipe = exa->pipe; + struct pipe_screen *screen = pipe->screen; + struct pipe_buffer *buf; + struct pipe_surface *dst_surf = screen->get_tex_surface( + screen, dst, 0, 0, 0, + PIPE_BUFFER_USAGE_GPU_WRITE); + struct pipe_framebuffer_state fb; + float s0, t0, s1, t1; + struct xorg_shader shader; + + assert(src->width[0] != 0); + assert(src->height[0] != 0); + assert(dst->width[0] != 0); + assert(dst->height[0] != 0); + +#if 0 + debug_printf("copy texture [%f, %f, %f, %f], [%f, %f, %f, %f]\n", + sx1, sy1, sx2, sy2, dx1, dy1, dx2, dy2); +#endif + +#if 1 + s0 = sx1 / src->width[0]; + s1 = sx2 / src->width[0]; + t0 = sy1 / src->height[0]; + t1 = sy2 / src->height[0]; +#else + s0 = 0; + s1 = 1; + t0 = 0; + t1 = 1; +#endif + + assert(screen->is_format_supported(screen, dst_surf->format, PIPE_TEXTURE_2D, + PIPE_TEXTURE_USAGE_RENDER_TARGET, 0)); + + /* save state (restored below) */ + cso_save_blend(exa->cso); + cso_save_samplers(exa->cso); + cso_save_sampler_textures(exa->cso); + cso_save_framebuffer(exa->cso); + cso_save_fragment_shader(exa->cso); + cso_save_vertex_shader(exa->cso); + + cso_save_viewport(exa->cso); + + + /* set misc state we care about */ + { + struct pipe_blend_state blend; + memset(&blend, 0, sizeof(blend)); + blend.rgb_src_factor = PIPE_BLENDFACTOR_ONE; + blend.alpha_src_factor = PIPE_BLENDFACTOR_ONE; + blend.rgb_dst_factor = PIPE_BLENDFACTOR_ZERO; + blend.alpha_dst_factor = PIPE_BLENDFACTOR_ZERO; + blend.colormask = PIPE_MASK_RGBA; + cso_set_blend(exa->cso, &blend); + } + + /* sampler */ + { + struct pipe_sampler_state sampler; + memset(&sampler, 0, sizeof(sampler)); + sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE; + sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE; + sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE; + sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE; + sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST; + sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST; + sampler.normalized_coords = 1; + cso_single_sampler(exa->cso, 0, &sampler); + cso_single_sampler_done(exa->cso); + } + + set_viewport(exa, dst_surf->width, dst_surf->height, Y0_TOP); + + /* texture */ + cso_set_sampler_textures(exa->cso, 1, &src); + + /* shaders */ + shader = xorg_shaders_get(exa->shaders, + VS_COMPOSITE, + FS_COMPOSITE); + cso_set_vertex_shader_handle(exa->cso, shader.vs); + cso_set_fragment_shader_handle(exa->cso, shader.fs); + + /* drawing dest */ + memset(&fb, 0, sizeof(fb)); + fb.width = dst_surf->width; + fb.height = dst_surf->height; + fb.nr_cbufs = 1; + fb.cbufs[0] = dst_surf; + { + int i; + for (i = 1; i < PIPE_MAX_COLOR_BUFS; ++i) + fb.cbufs[i] = 0; + } + cso_set_framebuffer(exa->cso, &fb); + + /* draw quad */ + buf = setup_vertex_data_tex(exa, + dx1, dy1, + dx2, dy2, + s0, t0, s1, t1, + 0.0f); + + if (buf) { + util_draw_vertex_buffer(exa->pipe, buf, 0, + PIPE_PRIM_TRIANGLE_FAN, + 4, /* verts */ + 2); /* attribs/vert */ + + pipe_buffer_reference(&buf, NULL); + } + + /* restore state we changed */ + cso_restore_blend(exa->cso); + cso_restore_samplers(exa->cso); + cso_restore_sampler_textures(exa->cso); + cso_restore_framebuffer(exa->cso); + cso_restore_vertex_shader(exa->cso); + cso_restore_fragment_shader(exa->cso); + cso_restore_viewport(exa->cso); + + pipe_surface_reference(&dst_surf, NULL); +} + +void xorg_copy_pixmap(struct exa_context *ctx, + struct exa_pixmap_priv *dst_priv, int dx, int dy, + struct exa_pixmap_priv *src_priv, int sx, int sy, + int width, int height) +{ + float dst_loc[4], src_loc[4]; + float dst_bounds[4], src_bounds[4]; + float src_shift[4], dst_shift[4], shift[4]; + struct pipe_texture *dst = dst_priv->tex; + struct pipe_texture *src = src_priv->tex; + + dst_loc[0] = dx; + dst_loc[1] = dy; + dst_loc[2] = width; + dst_loc[3] = height; + dst_bounds[0] = 0.f; + dst_bounds[1] = 0.f; + dst_bounds[2] = dst->width[0]; + dst_bounds[3] = dst->height[0]; + + src_loc[0] = sx; + src_loc[1] = sy; + src_loc[2] = width; + src_loc[3] = height; + src_bounds[0] = 0.f; + src_bounds[1] = 0.f; + src_bounds[2] = src->width[0]; + src_bounds[3] = src->height[0]; + + bound_rect(src_loc, src_bounds, src_shift); + bound_rect(dst_loc, dst_bounds, dst_shift); + shift[0] = src_shift[0] - dst_shift[0]; + shift[1] = src_shift[1] - dst_shift[1]; + + if (shift[0] < 0) + shift_rectx(src_loc, src_bounds, -shift[0]); + else + shift_rectx(dst_loc, dst_bounds, shift[0]); + + if (shift[1] < 0) + shift_recty(src_loc, src_bounds, -shift[1]); + else + shift_recty(dst_loc, dst_bounds, shift[1]); + + sync_size(src_loc, dst_loc); + + if (src_loc[2] >= 0 && src_loc[3] >= 0 && + dst_loc[2] >= 0 && dst_loc[3] >= 0) { + renderer_copy_texture(ctx, + src, + src_loc[0], + src_loc[1] + src_loc[3], + src_loc[0] + src_loc[2], + src_loc[1], + dst, + dst_loc[0], + dst_loc[1] + dst_loc[3], + dst_loc[0] + dst_loc[2], + dst_loc[1]); + } +} + |