/************************************************************************** * * Copyright 2010 Christian König * 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 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 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 #include "pipe/p_context.h" #include "pipe/p_screen.h" #include "util/u_draw.h" #include "util/u_sampler.h" #include "util/u_memory.h" #include "tgsi/tgsi_ureg.h" #include "vl_defines.h" #include "vl_types.h" #include "vl_vertex_buffers.h" #include "vl_idct.h" enum VS_OUTPUT { VS_O_VPOS = 0, VS_O_L_ADDR0 = 0, VS_O_L_ADDR1, VS_O_R_ADDR0, VS_O_R_ADDR1 }; /** * The DCT matrix stored as hex representation of floats. Equal to the following equation: * for (i = 0; i < 8; ++i) * for (j = 0; j < 8; ++j) * if (i == 0) const_matrix[i][j] = 1.0f / sqrtf(8.0f); * else const_matrix[i][j] = sqrtf(2.0f / 8.0f) * cosf((2 * j + 1) * i * M_PI / (2.0f * 8.0f)); */ static const uint32_t const_matrix[8][8] = { { 0x3eb504f3, 0x3eb504f3, 0x3eb504f3, 0x3eb504f3, 0x3eb504f3, 0x3eb504f3, 0x3eb504f3, 0x3eb504f3 }, { 0x3efb14be, 0x3ed4db31, 0x3e8e39da, 0x3dc7c5c4, 0xbdc7c5c2, 0xbe8e39d9, 0xbed4db32, 0xbefb14bf }, { 0x3eec835f, 0x3e43ef15, 0xbe43ef14, 0xbeec835e, 0xbeec835f, 0xbe43ef1a, 0x3e43ef1b, 0x3eec835f }, { 0x3ed4db31, 0xbdc7c5c2, 0xbefb14bf, 0xbe8e39dd, 0x3e8e39d7, 0x3efb14bf, 0x3dc7c5d0, 0xbed4db34 }, { 0x3eb504f3, 0xbeb504f3, 0xbeb504f4, 0x3eb504f1, 0x3eb504f3, 0xbeb504f0, 0xbeb504ef, 0x3eb504f4 }, { 0x3e8e39da, 0xbefb14bf, 0x3dc7c5c8, 0x3ed4db32, 0xbed4db34, 0xbdc7c5bb, 0x3efb14bf, 0xbe8e39d7 }, { 0x3e43ef15, 0xbeec835f, 0x3eec835f, 0xbe43ef07, 0xbe43ef23, 0x3eec8361, 0xbeec835c, 0x3e43ef25 }, { 0x3dc7c5c4, 0xbe8e39dd, 0x3ed4db32, 0xbefb14c0, 0x3efb14be, 0xbed4db31, 0x3e8e39ce, 0xbdc7c596 }, }; static void calc_addr(struct ureg_program *shader, struct ureg_dst addr[2], struct ureg_src tc, struct ureg_src start, bool right_side, bool transposed, float size) { unsigned wm_start = (right_side == transposed) ? TGSI_WRITEMASK_X : TGSI_WRITEMASK_Y; unsigned sw_start = right_side ? TGSI_SWIZZLE_Y : TGSI_SWIZZLE_X; unsigned wm_tc = (right_side == transposed) ? TGSI_WRITEMASK_Y : TGSI_WRITEMASK_X; unsigned sw_tc = right_side ? TGSI_SWIZZLE_X : TGSI_SWIZZLE_Y; /* * addr[0..1].(start) = right_side ? start.x : tc.x * addr[0..1].(tc) = right_side ? tc.y : start.y * addr[0..1].z = tc.z * addr[1].(start) += 1.0f / scale */ ureg_MOV(shader, ureg_writemask(addr[0], wm_start), ureg_scalar(start, sw_start)); ureg_MOV(shader, ureg_writemask(addr[0], wm_tc), ureg_scalar(tc, sw_tc)); ureg_ADD(shader, ureg_writemask(addr[1], wm_start), ureg_scalar(start, sw_start), ureg_imm1f(shader, 1.0f / size)); ureg_MOV(shader, ureg_writemask(addr[1], wm_tc), ureg_scalar(tc, sw_tc)); } static void increment_addr(struct ureg_program *shader, struct ureg_dst daddr[2], struct ureg_src saddr[2], bool right_side, bool transposed, int pos, float size) { unsigned wm_start = (right_side == transposed) ? TGSI_WRITEMASK_X : TGSI_WRITEMASK_Y; unsigned wm_tc = (right_side == transposed) ? TGSI_WRITEMASK_Y : TGSI_WRITEMASK_X; /* * daddr[0..1].(start) = saddr[0..1].(start) * daddr[0..1].(tc) = saddr[0..1].(tc) */ ureg_MOV(shader, ureg_writemask(daddr[0], wm_start), saddr[0]); ureg_ADD(shader, ureg_writemask(daddr[0], wm_tc), saddr[0], ureg_imm1f(shader, pos / size)); ureg_MOV(shader, ureg_writemask(daddr[1], wm_start), saddr[1]); ureg_ADD(shader, ureg_writemask(daddr[1], wm_tc), saddr[1], ureg_imm1f(shader, pos / size)); } static void fetch_four(struct ureg_program *shader, struct ureg_dst m[2], struct ureg_src addr[2], struct ureg_src sampler, bool resource3d) { ureg_TEX(shader, m[0], resource3d ? TGSI_TEXTURE_3D : TGSI_TEXTURE_2D, addr[0], sampler); ureg_TEX(shader, m[1], resource3d ? TGSI_TEXTURE_3D : TGSI_TEXTURE_2D, addr[1], sampler); } static void matrix_mul(struct ureg_program *shader, struct ureg_dst dst, struct ureg_dst l[2], struct ureg_dst r[2]) { struct ureg_dst tmp; tmp = ureg_DECL_temporary(shader); /* * tmp.xy = dot4(m[0][0..1], m[1][0..1]) * dst = tmp.x + tmp.y */ ureg_DP4(shader, ureg_writemask(tmp, TGSI_WRITEMASK_X), ureg_src(l[0]), ureg_src(r[0])); ureg_DP4(shader, ureg_writemask(tmp, TGSI_WRITEMASK_Y), ureg_src(l[1]), ureg_src(r[1])); ureg_ADD(shader, dst, ureg_scalar(ureg_src(tmp), TGSI_SWIZZLE_X), ureg_scalar(ureg_src(tmp), TGSI_SWIZZLE_Y)); ureg_release_temporary(shader, tmp); } static void * create_mismatch_vert_shader(struct vl_idct *idct) { struct ureg_program *shader; struct ureg_src vpos; struct ureg_src scale; struct ureg_dst t_tex; struct ureg_dst o_vpos, o_addr[2]; shader = ureg_create(TGSI_PROCESSOR_VERTEX); if (!shader) return NULL; vpos = ureg_DECL_vs_input(shader, VS_I_VPOS); t_tex = ureg_DECL_temporary(shader); o_vpos = ureg_DECL_output(shader, TGSI_SEMANTIC_POSITION, VS_O_VPOS); o_addr[0] = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, VS_O_L_ADDR0); o_addr[1] = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, VS_O_L_ADDR1); /* * scale = (VL_BLOCK_WIDTH, VL_BLOCK_HEIGHT) / (dst.width, dst.height) * * t_vpos = vpos + 7 / VL_BLOCK_WIDTH * o_vpos.xy = t_vpos * scale * * o_addr = calc_addr(...) * */ scale = ureg_imm2f(shader, (float)VL_BLOCK_WIDTH / idct->buffer_width, (float)VL_BLOCK_HEIGHT / idct->buffer_height); ureg_MAD(shader, ureg_writemask(o_vpos, TGSI_WRITEMASK_XY), vpos, scale, scale); ureg_MOV(shader, ureg_writemask(o_vpos, TGSI_WRITEMASK_ZW), ureg_imm1f(shader, 1.0f)); ureg_MUL(shader, ureg_writemask(t_tex, TGSI_WRITEMASK_XY), vpos, scale); calc_addr(shader, o_addr, ureg_src(t_tex), ureg_src(t_tex), false, false, idct->buffer_width / 4); ureg_release_temporary(shader, t_tex); ureg_END(shader); return ureg_create_shader_and_destroy(shader, idct->pipe); } static void * create_mismatch_frag_shader(struct vl_idct *idct) { struct ureg_program *shader; struct ureg_src addr[2]; struct ureg_dst m[8][2]; struct ureg_dst fragment; unsigned i; shader = ureg_create(TGSI_PROCESSOR_FRAGMENT); if (!shader) return NULL; addr[0] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_L_ADDR0, TGSI_INTERPOLATE_LINEAR); addr[1] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_L_ADDR1, TGSI_INTERPOLATE_LINEAR); fragment = ureg_DECL_output(shader, TGSI_SEMANTIC_COLOR, 0); for (i = 0; i < 8; ++i) { m[i][0] = ureg_DECL_temporary(shader); m[i][1] = ureg_DECL_temporary(shader); } for (i = 0; i < 8; ++i) { increment_addr(shader, m[i], addr, false, false, i, idct->buffer_height); } for (i = 0; i < 8; ++i) { struct ureg_src s_addr[2]; s_addr[0] = ureg_src(m[i][0]); s_addr[1] = ureg_src(m[i][1]); fetch_four(shader, m[i], s_addr, ureg_DECL_sampler(shader, 0), false); } for (i = 1; i < 8; ++i) { ureg_ADD(shader, m[0][0], ureg_src(m[0][0]), ureg_src(m[i][0])); ureg_ADD(shader, m[0][1], ureg_src(m[0][1]), ureg_src(m[i][1])); } ureg_ADD(shader, m[0][0], ureg_src(m[0][0]), ureg_src(m[0][1])); ureg_DP4(shader, m[0][0], ureg_abs(ureg_src(m[0][0])), ureg_imm1f(shader, 1 << 14)); ureg_MUL(shader, ureg_writemask(m[0][0], TGSI_WRITEMASK_W), ureg_abs(ureg_src(m[7][1])), ureg_imm1f(shader, 1 << 14)); ureg_FRC(shader, m[0][0], ureg_src(m[0][0])); ureg_SGT(shader, m[0][0], ureg_imm1f(shader, 0.5f), ureg_abs(ureg_src(m[0][0]))); ureg_CMP(shader, ureg_writemask(m[0][0], TGSI_WRITEMASK_W), ureg_negate(ureg_src(m[0][0])), ureg_imm1f(shader, 1.0f / (1 << 15)), ureg_imm1f(shader, -1.0f / (1 << 15))); ureg_MUL(shader, ureg_writemask(m[0][0], TGSI_WRITEMASK_W), ureg_src(m[0][0]), ureg_scalar(ureg_src(m[0][0]), TGSI_SWIZZLE_X)); ureg_MOV(shader, ureg_writemask(fragment, TGSI_WRITEMASK_XYZ), ureg_src(m[7][1])); ureg_ADD(shader, ureg_writemask(fragment, TGSI_WRITEMASK_W), ureg_src(m[0][0]), ureg_src(m[7][1])); for (i = 0; i < 8; ++i) { ureg_release_temporary(shader, m[i][0]); ureg_release_temporary(shader, m[i][1]); } ureg_END(shader); return ureg_create_shader_and_destroy(shader, idct->pipe); } static void * create_stage1_vert_shader(struct vl_idct *idct) { struct ureg_program *shader; struct ureg_src vrect, vpos; struct ureg_src scale; struct ureg_dst t_tex, t_start; struct ureg_dst o_vpos, o_l_addr[2], o_r_addr[2]; shader = ureg_create(TGSI_PROCESSOR_VERTEX); if (!shader) return NULL; vrect = ureg_DECL_vs_input(shader, VS_I_RECT); vpos = ureg_DECL_vs_input(shader, VS_I_VPOS); t_tex = ureg_DECL_temporary(shader); t_start = ureg_DECL_temporary(shader); o_vpos = ureg_DECL_output(shader, TGSI_SEMANTIC_POSITION, VS_O_VPOS); o_l_addr[0] = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, VS_O_L_ADDR0); o_l_addr[1] = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, VS_O_L_ADDR1); o_r_addr[0] = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, VS_O_R_ADDR0); o_r_addr[1] = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, VS_O_R_ADDR1); /* * scale = (VL_BLOCK_WIDTH, VL_BLOCK_HEIGHT) / (dst.width, dst.height) * * t_vpos = vpos + vrect * o_vpos.xy = t_vpos * scale * o_vpos.zw = vpos * * o_l_addr = calc_addr(...) * o_r_addr = calc_addr(...) * */ scale = ureg_imm2f(shader, (float)VL_BLOCK_WIDTH / idct->buffer_width, (float)VL_BLOCK_HEIGHT / idct->buffer_height); ureg_ADD(shader, ureg_writemask(t_tex, TGSI_WRITEMASK_XY), vpos, vrect); ureg_MUL(shader, ureg_writemask(t_tex, TGSI_WRITEMASK_XY), ureg_src(t_tex), scale); ureg_MOV(shader, ureg_writemask(o_vpos, TGSI_WRITEMASK_XY), ureg_src(t_tex)); ureg_MOV(shader, ureg_writemask(o_vpos, TGSI_WRITEMASK_ZW), ureg_imm1f(shader, 1.0f)); ureg_MUL(shader, ureg_writemask(t_start, TGSI_WRITEMASK_XY), vpos, scale); calc_addr(shader, o_l_addr, ureg_src(t_tex), ureg_src(t_start), false, false, idct->buffer_width / 4); calc_addr(shader, o_r_addr, vrect, ureg_imm1f(shader, 0.0f), true, true, VL_BLOCK_WIDTH / 4); ureg_release_temporary(shader, t_tex); ureg_release_temporary(shader, t_start); ureg_END(shader); return ureg_create_shader_and_destroy(shader, idct->pipe); } static void * create_stage1_frag_shader(struct vl_idct *idct) { struct ureg_program *shader; struct ureg_src l_addr[2], r_addr[2]; struct ureg_dst l[4][2], r[2]; struct ureg_dst *fragment; int i, j; shader = ureg_create(TGSI_PROCESSOR_FRAGMENT); if (!shader) return NULL; fragment = MALLOC(idct->nr_of_render_targets * sizeof(struct ureg_dst)); l_addr[0] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_L_ADDR0, TGSI_INTERPOLATE_LINEAR); l_addr[1] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_L_ADDR1, TGSI_INTERPOLATE_LINEAR); r_addr[0] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_R_ADDR0, TGSI_INTERPOLATE_LINEAR); r_addr[1] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_R_ADDR1, TGSI_INTERPOLATE_LINEAR); for (i = 0; i < idct->nr_of_render_targets; ++i) fragment[i] = ureg_DECL_output(shader, TGSI_SEMANTIC_COLOR, i); for (i = 0; i < 4; ++i) { l[i][0] = ureg_DECL_temporary(shader); l[i][1] = ureg_DECL_temporary(shader); } r[0] = ureg_DECL_temporary(shader); r[1] = ureg_DECL_temporary(shader); for (i = 0; i < 4; ++i) { increment_addr(shader, l[i], l_addr, false, false, i - 2, idct->buffer_height); } for (i = 0; i < 4; ++i) { struct ureg_src s_addr[2]; s_addr[0] = ureg_src(l[i][0]); s_addr[1] = ureg_src(l[i][1]); fetch_four(shader, l[i], s_addr, ureg_DECL_sampler(shader, 0), false); } for (i = 0; i < idct->nr_of_render_targets; ++i) { struct ureg_src s_addr[2]; increment_addr(shader, r, r_addr, true, true, i - (signed)idct->nr_of_render_targets / 2, VL_BLOCK_HEIGHT); s_addr[0] = ureg_src(r[0]); s_addr[1] = ureg_src(r[1]); fetch_four(shader, r, s_addr, ureg_DECL_sampler(shader, 1), false); for (j = 0; j < 4; ++j) { matrix_mul(shader, ureg_writemask(fragment[i], TGSI_WRITEMASK_X << j), l[j], r); } } for (i = 0; i < 4; ++i) { ureg_release_temporary(shader, l[i][0]); ureg_release_temporary(shader, l[i][1]); } ureg_release_temporary(shader, r[0]); ureg_release_temporary(shader, r[1]); ureg_END(shader); FREE(fragment); return ureg_create_shader_and_destroy(shader, idct->pipe); } void vl_idct_stage2_vert_shader(struct vl_idct *idct, struct ureg_program *shader, unsigned first_output, struct ureg_dst tex) { struct ureg_src vrect, vpos; struct ureg_src scale; struct ureg_dst t_start; struct ureg_dst o_l_addr[2], o_r_addr[2]; vrect = ureg_DECL_vs_input(shader, VS_I_RECT); vpos = ureg_DECL_vs_input(shader, VS_I_VPOS); t_start = ureg_DECL_temporary(shader); --first_output; o_l_addr[0] = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, first_output + VS_O_L_ADDR0); o_l_addr[1] = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, first_output + VS_O_L_ADDR1); o_r_addr[0] = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, first_output + VS_O_R_ADDR0); o_r_addr[1] = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, first_output + VS_O_R_ADDR1); scale = ureg_imm2f(shader, (float)VL_BLOCK_WIDTH / idct->buffer_width, (float)VL_BLOCK_HEIGHT / idct->buffer_height); ureg_MUL(shader, ureg_writemask(tex, TGSI_WRITEMASK_Z), ureg_scalar(vrect, TGSI_SWIZZLE_X), ureg_imm1f(shader, VL_BLOCK_WIDTH / idct->nr_of_render_targets)); ureg_MUL(shader, ureg_writemask(t_start, TGSI_WRITEMASK_XY), vpos, scale); calc_addr(shader, o_l_addr, vrect, ureg_imm1f(shader, 0.0f), false, false, VL_BLOCK_WIDTH / 4); calc_addr(shader, o_r_addr, ureg_src(tex), ureg_src(t_start), true, false, idct->buffer_height / 4); ureg_MOV(shader, ureg_writemask(o_r_addr[0], TGSI_WRITEMASK_Z), ureg_src(tex)); ureg_MOV(shader, ureg_writemask(o_r_addr[1], TGSI_WRITEMASK_Z), ureg_src(tex)); } void vl_idct_stage2_frag_shader(struct vl_idct *idct, struct ureg_program *shader, unsigned first_input, struct ureg_dst fragment) { struct ureg_src l_addr[2], r_addr[2]; struct ureg_dst l[2], r[2]; --first_input; l_addr[0] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, first_input + VS_O_L_ADDR0, TGSI_INTERPOLATE_LINEAR); l_addr[1] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, first_input + VS_O_L_ADDR1, TGSI_INTERPOLATE_LINEAR); r_addr[0] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, first_input + VS_O_R_ADDR0, TGSI_INTERPOLATE_LINEAR); r_addr[1] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, first_input + VS_O_R_ADDR1, TGSI_INTERPOLATE_LINEAR); l[0] = ureg_DECL_temporary(shader); l[1] = ureg_DECL_temporary(shader); r[0] = ureg_DECL_temporary(shader); r[1] = ureg_DECL_temporary(shader); fetch_four(shader, l, l_addr, ureg_DECL_sampler(shader, 1), false); fetch_four(shader, r, r_addr, ureg_DECL_sampler(shader, 0), true); matrix_mul(shader, fragment, l, r); ureg_release_temporary(shader, l[0]); ureg_release_temporary(shader, l[1]); ureg_release_temporary(shader, r[0]); ureg_release_temporary(shader, r[1]); } static bool init_shaders(struct vl_idct *idct) { idct->vs_mismatch = create_mismatch_vert_shader(idct); if (!idct->vs_mismatch) goto error_vs_mismatch; idct->fs_mismatch = create_mismatch_frag_shader(idct); if (!idct->fs_mismatch) goto error_fs_mismatch; idct->vs = create_stage1_vert_shader(idct); if (!idct->vs) goto error_vs; idct->fs = create_stage1_frag_shader(idct); if (!idct->fs) goto error_fs; return true; error_fs: idct->pipe->delete_vs_state(idct->pipe, idct->vs); error_vs: idct->pipe->delete_vs_state(idct->pipe, idct->vs_mismatch); error_fs_mismatch: idct->pipe->delete_vs_state(idct->pipe, idct->fs); error_vs_mismatch: return false; } static void cleanup_shaders(struct vl_idct *idct) { idct->pipe->delete_vs_state(idct->pipe, idct->vs_mismatch); idct->pipe->delete_fs_state(idct->pipe, idct->fs_mismatch); idct->pipe->delete_vs_state(idct->pipe, idct->vs); idct->pipe->delete_fs_state(idct->pipe, idct->fs); } static bool init_state(struct vl_idct *idct) { struct pipe_blend_state blend; struct pipe_rasterizer_state rs_state; struct pipe_sampler_state sampler; unsigned i; assert(idct); memset(&rs_state, 0, sizeof(rs_state)); rs_state.point_size = 1; rs_state.half_pixel_center = true; rs_state.bottom_edge_rule = true; rs_state.depth_clip = 1; idct->rs_state = idct->pipe->create_rasterizer_state(idct->pipe, &rs_state); if (!idct->rs_state) goto error_rs_state; memset(&blend, 0, sizeof blend); blend.independent_blend_enable = 0; blend.rt[0].blend_enable = 0; blend.rt[0].rgb_func = PIPE_BLEND_ADD; blend.rt[0].rgb_src_factor = PIPE_BLENDFACTOR_ONE; blend.rt[0].rgb_dst_factor = PIPE_BLENDFACTOR_ONE; blend.rt[0].alpha_func = PIPE_BLEND_ADD; blend.rt[0].alpha_src_factor = PIPE_BLENDFACTOR_ONE; blend.rt[0].alpha_dst_factor = PIPE_BLENDFACTOR_ONE; blend.logicop_enable = 0; blend.logicop_func = PIPE_LOGICOP_CLEAR; /* Needed to allow color writes to FB, even if blending disabled */ blend.rt[0].colormask = PIPE_MASK_RGBA; blend.dither = 0; idct->blend = idct->pipe->create_blend_state(idct->pipe, &blend); if (!idct->blend) goto error_blend; for (i = 0; i < 2; ++i) { memset(&sampler, 0, sizeof(sampler)); sampler.wrap_s = PIPE_TEX_WRAP_REPEAT; sampler.wrap_t = PIPE_TEX_WRAP_REPEAT; sampler.wrap_r = PIPE_TEX_WRAP_REPEAT; sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST; sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE; sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST; sampler.compare_mode = PIPE_TEX_COMPARE_NONE; sampler.compare_func = PIPE_FUNC_ALWAYS; sampler.normalized_coords = 1; idct->samplers[i] = idct->pipe->create_sampler_state(idct->pipe, &sampler); if (!idct->samplers[i]) goto error_samplers; } return true; error_samplers: for (i = 0; i < 2; ++i) if (idct->samplers[i]) idct->pipe->delete_sampler_state(idct->pipe, idct->samplers[i]); idct->pipe->delete_rasterizer_state(idct->pipe, idct->rs_state); error_blend: idct->pipe->delete_blend_state(idct->pipe, idct->blend); error_rs_state: return false; } static void cleanup_state(struct vl_idct *idct) { unsigned i; for (i = 0; i < 2; ++i) idct->pipe->delete_sampler_state(idct->pipe, idct->samplers[i]); idct->pipe->delete_rasterizer_state(idct->pipe, idct->rs_state); idct->pipe->delete_blend_state(idct->pipe, idct->blend); } static bool init_source(struct vl_idct *idct, struct vl_idct_buffer *buffer) { struct pipe_resource *tex; struct pipe_surface surf_templ; assert(idct && buffer); tex = buffer->sampler_views.individual.source->texture; buffer->fb_state_mismatch.width = tex->width0; buffer->fb_state_mismatch.height = tex->height0; buffer->fb_state_mismatch.nr_cbufs = 1; memset(&surf_templ, 0, sizeof(surf_templ)); surf_templ.format = tex->format; surf_templ.u.tex.first_layer = 0; surf_templ.u.tex.last_layer = 0; buffer->fb_state_mismatch.cbufs[0] = idct->pipe->create_surface(idct->pipe, tex, &surf_templ); buffer->viewport_mismatch.scale[0] = tex->width0; buffer->viewport_mismatch.scale[1] = tex->height0; buffer->viewport_mismatch.scale[2] = 1; buffer->viewport_mismatch.scale[3] = 1; return true; } static void cleanup_source(struct vl_idct_buffer *buffer) { assert(buffer); pipe_surface_reference(&buffer->fb_state_mismatch.cbufs[0], NULL); pipe_sampler_view_reference(&buffer->sampler_views.individual.source, NULL); } static bool init_intermediate(struct vl_idct *idct, struct vl_idct_buffer *buffer) { struct pipe_resource *tex; struct pipe_surface surf_templ; unsigned i; assert(idct && buffer); tex = buffer->sampler_views.individual.intermediate->texture; buffer->fb_state.width = tex->width0; buffer->fb_state.height = tex->height0; buffer->fb_state.nr_cbufs = idct->nr_of_render_targets; for(i = 0; i < idct->nr_of_render_targets; ++i) { memset(&surf_templ, 0, sizeof(surf_templ)); surf_templ.format = tex->format; surf_templ.u.tex.first_layer = i; surf_templ.u.tex.last_layer = i; buffer->fb_state.cbufs[i] = idct->pipe->create_surface( idct->pipe, tex, &surf_templ); if (!buffer->fb_state.cbufs[i]) goto error_surfaces; } buffer->viewport.scale[0] = tex->width0; buffer->viewport.scale[1] = tex->height0; buffer->viewport.scale[2] = 1; buffer->viewport.scale[3] = 1; return true; error_surfaces: for(i = 0; i < idct->nr_of_render_targets; ++i) pipe_surface_reference(&buffer->fb_state.cbufs[i], NULL); return false; } static void cleanup_intermediate(struct vl_idct_buffer *buffer) { unsigned i; assert(buffer); for(i = 0; i < PIPE_MAX_COLOR_BUFS; ++i) pipe_surface_reference(&buffer->fb_state.cbufs[i], NULL); pipe_sampler_view_reference(&buffer->sampler_views.individual.intermediate, NULL); } struct pipe_sampler_view * vl_idct_upload_matrix(struct pipe_context *pipe, float scale) { struct pipe_resource tex_templ, *matrix; struct pipe_sampler_view sv_templ, *sv; struct pipe_transfer *buf_transfer; unsigned i, j, pitch; float *f; struct pipe_box rect = { 0, 0, 0, VL_BLOCK_WIDTH / 4, VL_BLOCK_HEIGHT, 1 }; assert(pipe); memset(&tex_templ, 0, sizeof(tex_templ)); tex_templ.target = PIPE_TEXTURE_2D; tex_templ.format = PIPE_FORMAT_R32G32B32A32_FLOAT; tex_templ.last_level = 0; tex_templ.width0 = 2; tex_templ.height0 = 8; tex_templ.depth0 = 1; tex_templ.array_size = 1; tex_templ.usage = PIPE_USAGE_IMMUTABLE; tex_templ.bind = PIPE_BIND_SAMPLER_VIEW; tex_templ.flags = 0; matrix = pipe->screen->resource_create(pipe->screen, &tex_templ); if (!matrix) goto error_matrix; f = pipe->transfer_map(pipe, matrix, 0, PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD_RANGE, &rect, &buf_transfer); if (!f) goto error_map; pitch = buf_transfer->stride / sizeof(float); for(i = 0; i < VL_BLOCK_HEIGHT; ++i) for(j = 0; j < VL_BLOCK_WIDTH; ++j) // transpose and scale f[i * pitch + j] = ((const float (*)[8])const_matrix)[j][i] * scale; pipe->transfer_unmap(pipe, buf_transfer); memset(&sv_templ, 0, sizeof(sv_templ)); u_sampler_view_default_template(&sv_templ, matrix, matrix->format); sv = pipe->create_sampler_view(pipe, matrix, &sv_templ); pipe_resource_reference(&matrix, NULL); if (!sv) goto error_map; return sv; error_map: pipe_resource_reference(&matrix, NULL); error_matrix: return NULL; } bool vl_idct_init(struct vl_idct *idct, struct pipe_context *pipe, unsigned buffer_width, unsigned buffer_height, unsigned nr_of_render_targets, struct pipe_sampler_view *matrix, struct pipe_sampler_view *transpose) { assert(idct && pipe); assert(matrix && transpose); idct->pipe = pipe; idct->buffer_width = buffer_width; idct->buffer_height = buffer_height; idct->nr_of_render_targets = nr_of_render_targets; pipe_sampler_view_reference(&idct->matrix, matrix); pipe_sampler_view_reference(&idct->transpose, transpose); if(!init_shaders(idct)) return false; if(!init_state(idct)) { cleanup_shaders(idct); return false; } return true; } void vl_idct_cleanup(struct vl_idct *idct) { cleanup_shaders(idct); cleanup_state(idct); pipe_sampler_view_reference(&idct->matrix, NULL); pipe_sampler_view_reference(&idct->transpose, NULL); } bool vl_idct_init_buffer(struct vl_idct *idct, struct vl_idct_buffer *buffer, struct pipe_sampler_view *source, struct pipe_sampler_view *intermediate) { assert(buffer && idct); assert(source && intermediate); memset(buffer, 0, sizeof(struct vl_idct_buffer)); pipe_sampler_view_reference(&buffer->sampler_views.individual.matrix, idct->matrix); pipe_sampler_view_reference(&buffer->sampler_views.individual.source, source); pipe_sampler_view_reference(&buffer->sampler_views.individual.transpose, idct->transpose); pipe_sampler_view_reference(&buffer->sampler_views.individual.intermediate, intermediate); if (!init_source(idct, buffer)) return false; if (!init_intermediate(idct, buffer)) return false; return true; } void vl_idct_cleanup_buffer(struct vl_idct_buffer *buffer) { assert(buffer); cleanup_source(buffer); cleanup_intermediate(buffer); pipe_sampler_view_reference(&buffer->sampler_views.individual.matrix, NULL); pipe_sampler_view_reference(&buffer->sampler_views.individual.transpose, NULL); } void vl_idct_flush(struct vl_idct *idct, struct vl_idct_buffer *buffer, unsigned num_instances) { assert(buffer); idct->pipe->bind_rasterizer_state(idct->pipe, idct->rs_state); idct->pipe->bind_blend_state(idct->pipe, idct->blend); idct->pipe->bind_sampler_states(idct->pipe, PIPE_SHADER_FRAGMENT, 0, 2, idct->samplers); idct->pipe->set_sampler_views(idct->pipe, PIPE_SHADER_FRAGMENT, 0, 2, buffer->sampler_views.stage[0]); /* mismatch control */ idct->pipe->set_framebuffer_state(idct->pipe, &buffer->fb_state_mismatch); idct->pipe->set_viewport_states(idct->pipe, 0, 1, &buffer->viewport_mismatch); idct->pipe->bind_vs_state(idct->pipe, idct->vs_mismatch); idct->pipe->bind_fs_state(idct->pipe, idct->fs_mismatch); util_draw_arrays_instanced(idct->pipe, PIPE_PRIM_POINTS, 0, 1, 0, num_instances); /* first stage */ idct->pipe->set_framebuffer_state(idct->pipe, &buffer->fb_state); idct->pipe->set_viewport_states(idct->pipe, 0, 1, &buffer->viewport); idct->pipe->bind_vs_state(idct->pipe, idct->vs); idct->pipe->bind_fs_state(idct->pipe, idct->fs); util_draw_arrays_instanced(idct->pipe, PIPE_PRIM_QUADS, 0, 4, 0, num_instances); } void vl_idct_prepare_stage2(struct vl_idct *idct, struct vl_idct_buffer *buffer) { assert(buffer); /* second stage */ idct->pipe->bind_rasterizer_state(idct->pipe, idct->rs_state); idct->pipe->bind_sampler_states(idct->pipe, PIPE_SHADER_FRAGMENT, 0, 2, idct->samplers); idct->pipe->set_sampler_views(idct->pipe, PIPE_SHADER_FRAGMENT, 0, 2, buffer->sampler_views.stage[1]); }