/************************************************************************** * * Copyright 2007 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 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. * **************************************************************************/ /* * Authors: * Keith Whitwell */ #include "pipe/p_util.h" #include "pipe/p_shader_tokens.h" #include "draw_private.h" #include "draw_context.h" #define DRAW_DBG 0 /** * Fetch a float[4] vertex attribute from memory, doing format/type * conversion as needed. * * This is probably needed/dupliocated elsewhere, eg format * conversion, texture sampling etc. */ #define FETCH_ATTRIB( NAME, SZ, CVT ) \ static void \ fetch_##NAME(const void *ptr, float *attrib) \ { \ static const float defaults[4] = { 0,0,0,1 }; \ int i; \ \ for (i = 0; i < SZ; i++) { \ attrib[i] = CVT(i); \ } \ \ for (; i < 4; i++) { \ attrib[i] = defaults[i]; \ } \ } #define CVT_64_FLOAT(i) (float) ((double *) ptr)[i] #define CVT_32_FLOAT(i) ((float *) ptr)[i] #define CVT_8_USCALED(i) (float) ((unsigned char *) ptr)[i] #define CVT_16_USCALED(i) (float) ((unsigned short *) ptr)[i] #define CVT_32_USCALED(i) (float) ((unsigned int *) ptr)[i] #define CVT_8_SSCALED(i) (float) ((char *) ptr)[i] #define CVT_16_SSCALED(i) (float) ((short *) ptr)[i] #define CVT_32_SSCALED(i) (float) ((int *) ptr)[i] #define CVT_8_UNORM(i) (float) ((unsigned char *) ptr)[i] / 255.0f #define CVT_16_UNORM(i) (float) ((unsigned short *) ptr)[i] / 65535.0f #define CVT_32_UNORM(i) (float) ((unsigned int *) ptr)[i] / 4294967295.0f #define CVT_8_SNORM(i) (float) ((char *) ptr)[i] / 127.0f #define CVT_16_SNORM(i) (float) ((short *) ptr)[i] / 32767.0f #define CVT_32_SNORM(i) (float) ((int *) ptr)[i] / 2147483647.0f FETCH_ATTRIB( R64G64B64A64_FLOAT, 4, CVT_64_FLOAT ) FETCH_ATTRIB( R64G64B64_FLOAT, 3, CVT_64_FLOAT ) FETCH_ATTRIB( R64G64_FLOAT, 2, CVT_64_FLOAT ) FETCH_ATTRIB( R64_FLOAT, 1, CVT_64_FLOAT ) FETCH_ATTRIB( R32G32B32A32_FLOAT, 4, CVT_32_FLOAT ) FETCH_ATTRIB( R32G32B32_FLOAT, 3, CVT_32_FLOAT ) FETCH_ATTRIB( R32G32_FLOAT, 2, CVT_32_FLOAT ) FETCH_ATTRIB( R32_FLOAT, 1, CVT_32_FLOAT ) FETCH_ATTRIB( R32G32B32A32_USCALED, 4, CVT_32_USCALED ) FETCH_ATTRIB( R32G32B32_USCALED, 3, CVT_32_USCALED ) FETCH_ATTRIB( R32G32_USCALED, 2, CVT_32_USCALED ) FETCH_ATTRIB( R32_USCALED, 1, CVT_32_USCALED ) FETCH_ATTRIB( R32G32B32A32_SSCALED, 4, CVT_32_SSCALED ) FETCH_ATTRIB( R32G32B32_SSCALED, 3, CVT_32_SSCALED ) FETCH_ATTRIB( R32G32_SSCALED, 2, CVT_32_SSCALED ) FETCH_ATTRIB( R32_SSCALED, 1, CVT_32_SSCALED ) FETCH_ATTRIB( R32G32B32A32_UNORM, 4, CVT_32_UNORM ) FETCH_ATTRIB( R32G32B32_UNORM, 3, CVT_32_UNORM ) FETCH_ATTRIB( R32G32_UNORM, 2, CVT_32_UNORM ) FETCH_ATTRIB( R32_UNORM, 1, CVT_32_UNORM ) FETCH_ATTRIB( R32G32B32A32_SNORM, 4, CVT_32_SNORM ) FETCH_ATTRIB( R32G32B32_SNORM, 3, CVT_32_SNORM ) FETCH_ATTRIB( R32G32_SNORM, 2, CVT_32_SNORM ) FETCH_ATTRIB( R32_SNORM, 1, CVT_32_SNORM ) FETCH_ATTRIB( R16G16B16A16_USCALED, 4, CVT_16_USCALED ) FETCH_ATTRIB( R16G16B16_USCALED, 3, CVT_16_USCALED ) FETCH_ATTRIB( R16G16_USCALED, 2, CVT_16_USCALED ) FETCH_ATTRIB( R16_USCALED, 1, CVT_16_USCALED ) FETCH_ATTRIB( R16G16B16A16_SSCALED, 4, CVT_16_SSCALED ) FETCH_ATTRIB( R16G16B16_SSCALED, 3, CVT_16_SSCALED ) FETCH_ATTRIB( R16G16_SSCALED, 2, CVT_16_SSCALED ) FETCH_ATTRIB( R16_SSCALED, 1, CVT_16_SSCALED ) FETCH_ATTRIB( R16G16B16A16_UNORM, 4, CVT_16_UNORM ) FETCH_ATTRIB( R16G16B16_UNORM, 3, CVT_16_UNORM ) FETCH_ATTRIB( R16G16_UNORM, 2, CVT_16_UNORM ) FETCH_ATTRIB( R16_UNORM, 1, CVT_16_UNORM ) FETCH_ATTRIB( R16G16B16A16_SNORM, 4, CVT_16_SNORM ) FETCH_ATTRIB( R16G16B16_SNORM, 3, CVT_16_SNORM ) FETCH_ATTRIB( R16G16_SNORM, 2, CVT_16_SNORM ) FETCH_ATTRIB( R16_SNORM, 1, CVT_16_SNORM ) FETCH_ATTRIB( R8G8B8A8_USCALED, 4, CVT_8_USCALED ) FETCH_ATTRIB( R8G8B8_USCALED, 3, CVT_8_USCALED ) FETCH_ATTRIB( R8G8_USCALED, 2, CVT_8_USCALED ) FETCH_ATTRIB( R8_USCALED, 1, CVT_8_USCALED ) FETCH_ATTRIB( R8G8B8A8_SSCALED, 4, CVT_8_SSCALED ) FETCH_ATTRIB( R8G8B8_SSCALED, 3, CVT_8_SSCALED ) FETCH_ATTRIB( R8G8_SSCALED, 2, CVT_8_SSCALED ) FETCH_ATTRIB( R8_SSCALED, 1, CVT_8_SSCALED ) FETCH_ATTRIB( R8G8B8A8_UNORM, 4, CVT_8_UNORM ) FETCH_ATTRIB( R8G8B8_UNORM, 3, CVT_8_UNORM ) FETCH_ATTRIB( R8G8_UNORM, 2, CVT_8_UNORM ) FETCH_ATTRIB( R8_UNORM, 1, CVT_8_UNORM ) FETCH_ATTRIB( R8G8B8A8_SNORM, 4, CVT_8_SNORM ) FETCH_ATTRIB( R8G8B8_SNORM, 3, CVT_8_SNORM ) FETCH_ATTRIB( R8G8_SNORM, 2, CVT_8_SNORM ) FETCH_ATTRIB( R8_SNORM, 1, CVT_8_SNORM ) FETCH_ATTRIB( A8R8G8B8_UNORM, 4, CVT_8_UNORM ) //FETCH_ATTRIB( R8G8B8A8_UNORM, 4, CVT_8_UNORM ) static void fetch_B8G8R8A8_UNORM(const void *ptr, float *attrib) { attrib[2] = CVT_8_UNORM(0); attrib[1] = CVT_8_UNORM(1); attrib[0] = CVT_8_UNORM(2); attrib[3] = CVT_8_UNORM(3); } static fetch_func get_fetch_func( enum pipe_format format ) { #if 0 { char tmp[80]; pf_sprint_name(tmp, format); debug_printf("%s: %s\n", __FUNCTION__, tmp); } #endif switch (format) { case PIPE_FORMAT_R64_FLOAT: return fetch_R64_FLOAT; case PIPE_FORMAT_R64G64_FLOAT: return fetch_R64G64_FLOAT; case PIPE_FORMAT_R64G64B64_FLOAT: return fetch_R64G64B64_FLOAT; case PIPE_FORMAT_R64G64B64A64_FLOAT: return fetch_R64G64B64A64_FLOAT; case PIPE_FORMAT_R32_FLOAT: return fetch_R32_FLOAT; case PIPE_FORMAT_R32G32_FLOAT: return fetch_R32G32_FLOAT; case PIPE_FORMAT_R32G32B32_FLOAT: return fetch_R32G32B32_FLOAT; case PIPE_FORMAT_R32G32B32A32_FLOAT: return fetch_R32G32B32A32_FLOAT; case PIPE_FORMAT_R32_UNORM: return fetch_R32_UNORM; case PIPE_FORMAT_R32G32_UNORM: return fetch_R32G32_UNORM; case PIPE_FORMAT_R32G32B32_UNORM: return fetch_R32G32B32_UNORM; case PIPE_FORMAT_R32G32B32A32_UNORM: return fetch_R32G32B32A32_UNORM; case PIPE_FORMAT_R32_USCALED: return fetch_R32_USCALED; case PIPE_FORMAT_R32G32_USCALED: return fetch_R32G32_USCALED; case PIPE_FORMAT_R32G32B32_USCALED: return fetch_R32G32B32_USCALED; case PIPE_FORMAT_R32G32B32A32_USCALED: return fetch_R32G32B32A32_USCALED; case PIPE_FORMAT_R32_SNORM: return fetch_R32_SNORM; case PIPE_FORMAT_R32G32_SNORM: return fetch_R32G32_SNORM; case PIPE_FORMAT_R32G32B32_SNORM: return fetch_R32G32B32_SNORM; case PIPE_FORMAT_R32G32B32A32_SNORM: return fetch_R32G32B32A32_SNORM; case PIPE_FORMAT_R32_SSCALED: return fetch_R32_SSCALED; case PIPE_FORMAT_R32G32_SSCALED: return fetch_R32G32_SSCALED; case PIPE_FORMAT_R32G32B32_SSCALED: return fetch_R32G32B32_SSCALED; case PIPE_FORMAT_R32G32B32A32_SSCALED: return fetch_R32G32B32A32_SSCALED; case PIPE_FORMAT_R16_UNORM: return fetch_R16_UNORM; case PIPE_FORMAT_R16G16_UNORM: return fetch_R16G16_UNORM; case PIPE_FORMAT_R16G16B16_UNORM: return fetch_R16G16B16_UNORM; case PIPE_FORMAT_R16G16B16A16_UNORM: return fetch_R16G16B16A16_UNORM; case PIPE_FORMAT_R16_USCALED: return fetch_R16_USCALED; case PIPE_FORMAT_R16G16_USCALED: return fetch_R16G16_USCALED; case PIPE_FORMAT_R16G16B16_USCALED: return fetch_R16G16B16_USCALED; case PIPE_FORMAT_R16G16B16A16_USCALED: return fetch_R16G16B16A16_USCALED; case PIPE_FORMAT_R16_SNORM: return fetch_R16_SNORM; case PIPE_FORMAT_R16G16_SNORM: return fetch_R16G16_SNORM; case PIPE_FORMAT_R16G16B16_SNORM: return fetch_R16G16B16_SNORM; case PIPE_FORMAT_R16G16B16A16_SNORM: return fetch_R16G16B16A16_SNORM; case PIPE_FORMAT_R16_SSCALED: return fetch_R16_SSCALED; case PIPE_FORMAT_R16G16_SSCALED: return fetch_R16G16_SSCALED; case PIPE_FORMAT_R16G16B16_SSCALED: return fetch_R16G16B16_SSCALED; case PIPE_FORMAT_R16G16B16A16_SSCALED: return fetch_R16G16B16A16_SSCALED; case PIPE_FORMAT_R8_UNORM: return fetch_R8_UNORM; case PIPE_FORMAT_R8G8_UNORM: return fetch_R8G8_UNORM; case PIPE_FORMAT_R8G8B8_UNORM: return fetch_R8G8B8_UNORM; case PIPE_FORMAT_R8G8B8A8_UNORM: return fetch_R8G8B8A8_UNORM; case PIPE_FORMAT_R8_USCALED: return fetch_R8_USCALED; case PIPE_FORMAT_R8G8_USCALED: return fetch_R8G8_USCALED; case PIPE_FORMAT_R8G8B8_USCALED: return fetch_R8G8B8_USCALED; case PIPE_FORMAT_R8G8B8A8_USCALED: return fetch_R8G8B8A8_USCALED; case PIPE_FORMAT_R8_SNORM: return fetch_R8_SNORM; case PIPE_FORMAT_R8G8_SNORM: return fetch_R8G8_SNORM; case PIPE_FORMAT_R8G8B8_SNORM: return fetch_R8G8B8_SNORM; case PIPE_FORMAT_R8G8B8A8_SNORM: return fetch_R8G8B8A8_SNORM; case PIPE_FORMAT_R8_SSCALED: return fetch_R8_SSCALED; case PIPE_FORMAT_R8G8_SSCALED: return fetch_R8G8_SSCALED; case PIPE_FORMAT_R8G8B8_SSCALED: return fetch_R8G8B8_SSCALED; case PIPE_FORMAT_R8G8B8A8_SSCALED: return fetch_R8G8B8A8_SSCALED; case PIPE_FORMAT_A8R8G8B8_UNORM: return fetch_A8R8G8B8_UNORM; case PIPE_FORMAT_B8G8R8A8_UNORM: return fetch_B8G8R8A8_UNORM; case 0: return NULL; /* not sure why this is needed */ default: /* This can get hit because draw-state-validation is too eager, and can jump in here validating stuff before the state tracker has set up everything. */ /* assert(0); */ return NULL; } } static void transpose_4x4( float *out, const float *in ) { /* This can be achieved in 12 sse instructions, plus the final * stores I guess. This is probably a bit more than that - maybe * 32 or so? */ out[0] = in[0]; out[1] = in[4]; out[2] = in[8]; out[3] = in[12]; out[4] = in[1]; out[5] = in[5]; out[6] = in[9]; out[7] = in[13]; out[8] = in[2]; out[9] = in[6]; out[10] = in[10]; out[11] = in[14]; out[12] = in[3]; out[13] = in[7]; out[14] = in[11]; out[15] = in[15]; } static void fetch_xyz_rgb( struct draw_context *draw, struct tgsi_exec_machine *machine, const unsigned *elts, unsigned count ) { const unsigned *pitch = draw->vertex_fetch.pitch; const ubyte **src = draw->vertex_fetch.src_ptr; int i; assert(count <= 4); // debug_printf("%s\n", __FUNCTION__); /* loop over vertex attributes (vertex shader inputs) */ for (i = 0; i < 4; i++) { { const float *in = (const float *)(src[0] + elts[i] * pitch[0]); float *out = &machine->Inputs[0].xyzw[0].f[i]; out[0] = in[0]; out[4] = in[1]; out[8] = in[2]; out[12] = 1.0f; } { const float *in = (const float *)(src[1] + elts[i] * pitch[1]); float *out = &machine->Inputs[1].xyzw[0].f[i]; out[0] = in[0]; out[4] = in[1]; out[8] = in[2]; out[12] = 1.0f; } } } static void fetch_xyz_rgb_st( struct draw_context *draw, struct tgsi_exec_machine *machine, const unsigned *elts, unsigned count ) { const unsigned *pitch = draw->vertex_fetch.pitch; const ubyte **src = draw->vertex_fetch.src_ptr; int i; assert(count <= 4); /* loop over vertex attributes (vertex shader inputs) */ for (i = 0; i < 4; i++) { { const float *in = (const float *)(src[0] + elts[i] * pitch[0]); float *out = &machine->Inputs[0].xyzw[0].f[i]; out[0] = in[0]; out[4] = in[1]; out[8] = in[2]; out[12] = 1.0f; } { const float *in = (const float *)(src[1] + elts[i] * pitch[1]); float *out = &machine->Inputs[1].xyzw[0].f[i]; out[0] = in[0]; out[4] = in[1]; out[8] = in[2]; out[12] = 1.0f; } { const float *in = (const float *)(src[2] + elts[i] * pitch[2]); float *out = &machine->Inputs[2].xyzw[0].f[i]; out[0] = in[0]; out[4] = in[1]; out[8] = 0.0f; out[12] = 1.0f; } } } /** * Fetch vertex attributes for 'count' vertices. */ static void generic_vertex_fetch( struct draw_context *draw, struct tgsi_exec_machine *machine, const unsigned *elts, unsigned count ) { unsigned nr_attrs = draw->vertex_fetch.nr_attrs; unsigned attr; assert(count <= 4); // debug_printf("%s %d\n", __FUNCTION__, count); /* loop over vertex attributes (vertex shader inputs) */ for (attr = 0; attr < nr_attrs; attr++) { const unsigned pitch = draw->vertex_fetch.pitch[attr]; const ubyte *src = draw->vertex_fetch.src_ptr[attr]; const fetch_func fetch = draw->vertex_fetch.fetch[attr]; unsigned i; float p[4][4]; /* Fetch four attributes for four vertices. * * Could fetch directly into AOS format, but this is meant to be * a prototype for an sse implementation, which would have * difficulties doing that. */ for (i = 0; i < count; i++) fetch( src + elts[i] * pitch, p[i] ); /* Be nice and zero out any missing vertices: */ for ( ; i < 4; i++) p[i][0] = p[i][1] = p[i][2] = p[i][3] = 0; /* Transpose/swizzle into sse-friendly format. Currently * assuming that all vertex shader inputs are float[4], but this * isn't true -- if the vertex shader only wants tex0.xy, we * could optimize for that. * * To do so fully without codegen would probably require an * excessive number of fetch functions, but we could at least * minimize the transpose step: */ transpose_4x4( (float *)&machine->Inputs[attr].xyzw[0].f[0], (float *)p ); } } void draw_update_vertex_fetch( struct draw_context *draw ) { unsigned nr_attrs, i; // debug_printf("%s\n", __FUNCTION__); /* this may happend during context init */ if (!draw->vertex_shader) return; nr_attrs = draw->vertex_shader->info.num_inputs; for (i = 0; i < nr_attrs; i++) { unsigned buf = draw->vertex_element[i].vertex_buffer_index; enum pipe_format format = draw->vertex_element[i].src_format; draw->vertex_fetch.src_ptr[i] = (const ubyte *) draw->user.vbuffer[buf] + draw->vertex_buffer[buf].buffer_offset + draw->vertex_element[i].src_offset; draw->vertex_fetch.pitch[i] = draw->vertex_buffer[buf].pitch; draw->vertex_fetch.fetch[i] = get_fetch_func( format ); } draw->vertex_fetch.nr_attrs = nr_attrs; draw->vertex_fetch.fetch_func = generic_vertex_fetch; switch (nr_attrs) { case 2: if (draw->vertex_element[0].src_format == PIPE_FORMAT_R32G32B32_FLOAT && draw->vertex_element[1].src_format == PIPE_FORMAT_R32G32B32_FLOAT) draw->vertex_fetch.fetch_func = fetch_xyz_rgb; break; case 3: if (draw->vertex_element[0].src_format == PIPE_FORMAT_R32G32B32_FLOAT && draw->vertex_element[1].src_format == PIPE_FORMAT_R32G32B32_FLOAT && draw->vertex_element[2].src_format == PIPE_FORMAT_R32G32_FLOAT) draw->vertex_fetch.fetch_func = fetch_xyz_rgb_st; break; default: break; } }