1 /* Display a cleared blue window. This demo has no dependencies on
2 * any utility code, just the graw interface and gallium.
5 #include "state_tracker/graw.h"
6 #include "pipe/p_screen.h"
7 #include "pipe/p_context.h"
8 #include "pipe/p_shader_tokens.h"
9 #include "pipe/p_state.h"
10 #include "pipe/p_defines.h"
11 #include <stdio.h> /* for fread(), etc */
13 #include "util/u_debug.h" /* debug_dump_surface_bmp() */
14 #include "util/u_inlines.h"
15 #include "util/u_memory.h" /* Offset() */
16 #include "util/u_box.h"
18 static const char *filename = NULL;
19 unsigned show_fps = 0;
20 unsigned draw_strip = 0;
23 static void usage(char *name)
25 fprintf(stderr, "usage: %s [ options ] shader_filename\n", name);
27 fprintf(stderr, "\n" );
28 fprintf(stderr, "options:\n");
29 fprintf(stderr, " -fps show frames per second\n");
30 fprintf(stderr, " -strip renders a triangle strip\n");
35 enum pipe_format formats[] = {
36 PIPE_FORMAT_R8G8B8A8_UNORM,
37 PIPE_FORMAT_B8G8R8A8_UNORM,
41 static const int WIDTH = 250;
42 static const int HEIGHT = 250;
44 static struct pipe_screen *screen = NULL;
45 static struct pipe_context *ctx = NULL;
46 static struct pipe_resource *rttex = NULL;
47 static struct pipe_resource *constbuf1 = NULL;
48 static struct pipe_resource *constbuf2 = NULL;
49 static struct pipe_surface *surf = NULL;
50 static struct pipe_sampler_view *sv = NULL;
51 static void *sampler = NULL;
52 static void *window = NULL;
53 static struct pipe_resource *samptex = NULL;
61 /* Vertex data matches progs/fp/fp-tri.c, but flipped in Y dimension
62 * so that the final images are the same.
64 static struct vertex vertices[] =
66 { { 0.9, 0.9, 0.0, 1.0 },
70 { { 0.9, -0.9, 0.0, 1.0 },
74 { {-0.9, 0.0, 0.0, 1.0 },
79 static struct vertex vertices_strip[] =
81 { { 0.9, 0.9, 0.0, 1.0 },
85 { { 0.9, -0.9, 0.0, 1.0 },
89 { {-0.9, 0.9, 0.0, 1.0 },
93 { {-0.9, -0.9, 0.0, 1.0 },
98 static float constants1[] =
116 static float constants2[] =
134 static void init_fs_constbuf( void )
136 struct pipe_resource templat;
139 templat.target = PIPE_BUFFER;
140 templat.format = PIPE_FORMAT_R8_UNORM;
141 templat.width0 = sizeof(constants1);
144 templat.last_level = 0;
145 templat.nr_samples = 1;
146 templat.bind = PIPE_BIND_CONSTANT_BUFFER;
148 constbuf1 = screen->resource_create(screen, &templat);
149 if (constbuf1 == NULL)
151 constbuf2 = screen->resource_create(screen, &templat);
152 if (constbuf2 == NULL)
156 u_box_2d(0,0,sizeof(constants1),1, &box);
158 ctx->transfer_inline_write(ctx,
168 ctx->set_constant_buffer(ctx,
169 PIPE_SHADER_GEOMETRY, 0,
173 u_box_2d(0,0,sizeof(constants2),1, &box);
175 ctx->transfer_inline_write(ctx,
185 ctx->set_constant_buffer(ctx,
186 PIPE_SHADER_GEOMETRY, 1,
192 static void set_viewport( float x, float y,
193 float width, float height,
194 float near, float far)
197 float half_width = (float)width / 2.0f;
198 float half_height = (float)height / 2.0f;
199 float half_depth = ((float)far - (float)near) / 2.0f;
200 struct pipe_viewport_state vp;
202 vp.scale[0] = half_width;
203 vp.scale[1] = half_height;
204 vp.scale[2] = half_depth;
207 vp.translate[0] = half_width + x;
208 vp.translate[1] = half_height + y;
209 vp.translate[2] = half_depth + z;
210 vp.translate[3] = 0.0f;
212 ctx->set_viewport_state( ctx, &vp );
215 static void set_vertices( void )
217 struct pipe_vertex_element ve[3];
218 struct pipe_vertex_buffer vbuf;
221 memset(ve, 0, sizeof ve);
223 ve[0].src_offset = Offset(struct vertex, position);
224 ve[0].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
225 ve[1].src_offset = Offset(struct vertex, color);
226 ve[1].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
227 ve[2].src_offset = Offset(struct vertex, texcoord);
228 ve[2].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
230 handle = ctx->create_vertex_elements_state(ctx, 3, ve);
231 ctx->bind_vertex_elements_state(ctx, handle);
234 vbuf.stride = sizeof( struct vertex );
235 vbuf.buffer_offset = 0;
237 vbuf.max_index = sizeof(vertices_strip) / vbuf.stride;
238 vbuf.buffer = screen->user_buffer_create(screen,
240 sizeof(vertices_strip),
241 PIPE_BIND_VERTEX_BUFFER);
243 vbuf.max_index = sizeof(vertices) / vbuf.stride;
244 vbuf.buffer = screen->user_buffer_create(screen,
247 PIPE_BIND_VERTEX_BUFFER);
250 ctx->set_vertex_buffers(ctx, 1, &vbuf);
253 static void set_vertex_shader( void )
261 "DCL OUT[0], POSITION\n"
262 "DCL OUT[1], COLOR[0]\n"
263 "DCL OUT[2], GENERIC[0]\n"
264 " MOV OUT[0], IN[0]\n"
265 " MOV OUT[1], IN[1]\n"
266 " MOV OUT[2], IN[2]\n"
269 handle = graw_parse_vertex_shader(ctx, text);
270 ctx->bind_vs_state(ctx, handle);
273 static void set_fragment_shader( void )
278 "DCL IN[0], COLOR, LINEAR\n"
279 "DCL OUT[0], COLOR\n"
280 " 0: MOV OUT[0], IN[0]\n"
283 handle = graw_parse_fragment_shader(ctx, text);
284 ctx->bind_fs_state(ctx, handle);
288 static void set_geometry_shader( void )
295 if ((f = fopen(filename, "r")) == NULL) {
296 fprintf(stderr, "Couldn't open %s\n", filename);
300 sz = fread(buf, 1, sizeof(buf), f);
302 printf("file too long\n");
305 printf("%.*s\n", sz, buf);
308 handle = graw_parse_geometry_shader(ctx, buf);
309 ctx->bind_gs_state(ctx, handle);
314 static void draw( void )
316 float clear_color[4] = {.1,.3,.5,0};
318 ctx->clear(ctx, PIPE_CLEAR_COLOR, clear_color, 0, 0);
320 ctx->draw_arrays(ctx, PIPE_PRIM_TRIANGLE_STRIP, 0, 4);
322 ctx->draw_arrays(ctx, PIPE_PRIM_TRIANGLES, 0, 3);
324 ctx->flush(ctx, PIPE_FLUSH_RENDER_CACHE, NULL);
327 /* At the moment, libgraw leaks out/makes available some of the
328 * symbols from gallium/auxiliary, including these debug helpers.
329 * Will eventually want to bless some of these paths, and lock the
330 * others down so they aren't accessible from test programs.
332 * This currently just happens to work on debug builds - a release
333 * build will probably fail to link here:
335 debug_dump_surface_bmp(ctx, "result.bmp", surf);
338 screen->flush_frontbuffer(screen, surf, window);
343 static void init_tex( void )
345 struct pipe_sampler_view sv_template;
346 struct pipe_sampler_state sampler_desc;
347 struct pipe_resource templat;
349 ubyte tex2d[SIZE][SIZE][4];
353 for (s = 0; s < SIZE; s++) {
354 for (t = 0; t < SIZE; t++) {
357 tex2d[t][s][0] = (x) ? 0 : 63;
358 tex2d[t][s][1] = (x) ? 0 : 128;
360 tex2d[t][s][3] = 0xff;
363 int x = ((s ^ t) >> 2) & 1;
364 tex2d[t][s][0] = s*255/(SIZE-1);
365 tex2d[t][s][1] = t*255/(SIZE-1);
366 tex2d[t][s][2] = (x) ? 0 : 128;
367 tex2d[t][s][3] = 0xff;
373 tex2d[0][0][1] = 255;
374 tex2d[0][0][2] = 255;
379 tex2d[0][1][2] = 255;
380 tex2d[0][1][3] = 255;
382 tex2d[1][0][0] = 255;
383 tex2d[1][0][1] = 255;
385 tex2d[1][0][3] = 255;
387 tex2d[1][1][0] = 255;
390 tex2d[1][1][3] = 255;
393 templat.target = PIPE_TEXTURE_2D;
394 templat.format = PIPE_FORMAT_B8G8R8A8_UNORM;
395 templat.width0 = SIZE;
396 templat.height0 = SIZE;
398 templat.last_level = 0;
399 templat.nr_samples = 1;
400 templat.bind = PIPE_BIND_SAMPLER_VIEW;
403 samptex = screen->resource_create(screen,
408 u_box_2d(0,0,SIZE,SIZE, &box);
410 ctx->transfer_inline_write(ctx,
419 /* Possibly read back & compare against original data:
423 struct pipe_transfer *t;
425 t = pipe_get_transfer(ctx, samptex,
426 0, 0, 0, /* face, level, zslice */
428 0, 0, SIZE, SIZE); /* x, y, width, height */
430 ptr = ctx->transfer_map(ctx, t);
432 if (memcmp(ptr, tex2d, sizeof tex2d) != 0) {
437 ctx->transfer_unmap(ctx, t);
439 ctx->transfer_destroy(ctx, t);
442 memset(&sv_template, 0, sizeof sv_template);
443 sv_template.format = samptex->format;
444 sv_template.texture = samptex;
445 sv_template.first_level = 0;
446 sv_template.last_level = 0;
447 sv_template.swizzle_r = 0;
448 sv_template.swizzle_g = 1;
449 sv_template.swizzle_b = 2;
450 sv_template.swizzle_a = 3;
451 sv = ctx->create_sampler_view(ctx, samptex, &sv_template);
455 ctx->set_fragment_sampler_views(ctx, 1, &sv);
458 memset(&sampler_desc, 0, sizeof sampler_desc);
459 sampler_desc.wrap_s = PIPE_TEX_WRAP_REPEAT;
460 sampler_desc.wrap_t = PIPE_TEX_WRAP_REPEAT;
461 sampler_desc.wrap_r = PIPE_TEX_WRAP_REPEAT;
462 sampler_desc.min_img_filter = PIPE_TEX_FILTER_NEAREST;
463 sampler_desc.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
464 sampler_desc.mag_img_filter = PIPE_TEX_FILTER_NEAREST;
465 sampler_desc.compare_mode = PIPE_TEX_COMPARE_NONE;
466 sampler_desc.compare_func = 0;
467 sampler_desc.normalized_coords = 1;
468 sampler_desc.max_anisotropy = 0;
470 sampler = ctx->create_sampler_state(ctx, &sampler_desc);
474 ctx->bind_fragment_sampler_states(ctx, 1, &sampler);
478 static void init( void )
480 struct pipe_framebuffer_state fb;
481 struct pipe_resource templat;
484 /* It's hard to say whether window or screen should be created
485 * first. Different environments would prefer one or the other.
487 * Also, no easy way of querying supported formats if the screen
488 * cannot be created first.
491 window == NULL && formats[i] != PIPE_FORMAT_NONE;
494 screen = graw_create_window_and_screen(0,0,WIDTH,HEIGHT,
499 ctx = screen->context_create(screen, NULL);
503 templat.target = PIPE_TEXTURE_2D;
504 templat.format = formats[i];
505 templat.width0 = WIDTH;
506 templat.height0 = HEIGHT;
508 templat.last_level = 0;
509 templat.nr_samples = 1;
510 templat.bind = (PIPE_BIND_RENDER_TARGET |
511 PIPE_BIND_DISPLAY_TARGET);
513 rttex = screen->resource_create(screen,
518 surf = screen->get_tex_surface(screen, rttex, 0, 0, 0,
519 PIPE_BIND_RENDER_TARGET |
520 PIPE_BIND_DISPLAY_TARGET);
524 memset(&fb, 0, sizeof fb);
530 ctx->set_framebuffer_state(ctx, &fb);
533 struct pipe_blend_state blend;
535 memset(&blend, 0, sizeof blend);
536 blend.rt[0].colormask = PIPE_MASK_RGBA;
537 handle = ctx->create_blend_state(ctx, &blend);
538 ctx->bind_blend_state(ctx, handle);
542 struct pipe_depth_stencil_alpha_state depthstencil;
544 memset(&depthstencil, 0, sizeof depthstencil);
545 handle = ctx->create_depth_stencil_alpha_state(ctx, &depthstencil);
546 ctx->bind_depth_stencil_alpha_state(ctx, handle);
550 struct pipe_rasterizer_state rasterizer;
552 memset(&rasterizer, 0, sizeof rasterizer);
553 rasterizer.cull_face = PIPE_FACE_NONE;
554 rasterizer.gl_rasterization_rules = 1;
555 handle = ctx->create_rasterizer_state(ctx, &rasterizer);
556 ctx->bind_rasterizer_state(ctx, handle);
559 set_viewport(0, 0, WIDTH, HEIGHT, 30, 1000);
566 set_fragment_shader();
567 set_geometry_shader();
570 static void args(int argc, char *argv[])
574 for (i = 1; i < argc; i++) {
575 if (strcmp(argv[i], "-fps") == 0) {
578 else if (strcmp(argv[i], "-strip") == 0) {
581 else if (i == argc - 1) {
596 int main( int argc, char *argv[] )
601 graw_set_display_func( draw );