diff options
Diffstat (limited to 'src/gallium/tests/graw/quad-sample.c')
| -rw-r--r-- | src/gallium/tests/graw/quad-sample.c | 414 |
1 files changed, 414 insertions, 0 deletions
diff --git a/src/gallium/tests/graw/quad-sample.c b/src/gallium/tests/graw/quad-sample.c new file mode 100644 index 00000000000..3c6458b434e --- /dev/null +++ b/src/gallium/tests/graw/quad-sample.c @@ -0,0 +1,414 @@ +/* Display a cleared blue window. This demo has no dependencies on + * any utility code, just the graw interface and gallium. + */ + +#include "state_tracker/graw.h" +#include "pipe/p_screen.h" +#include "pipe/p_context.h" +#include "pipe/p_shader_tokens.h" +#include "pipe/p_state.h" +#include "pipe/p_defines.h" + +#include "util/u_debug.h" /* debug_dump_surface_bmp() */ +#include "util/u_inlines.h" +#include "util/u_memory.h" /* Offset() */ +#include "util/u_draw_quad.h" +#include "util/u_box.h" + +#include <stdio.h> + +enum pipe_format formats[] = { + PIPE_FORMAT_R8G8B8A8_UNORM, + PIPE_FORMAT_B8G8R8A8_UNORM, + PIPE_FORMAT_NONE +}; + +static const int WIDTH = 300; +static const int HEIGHT = 300; + +static struct pipe_screen *screen = NULL; +static struct pipe_context *ctx = NULL; +static struct pipe_resource *rttex = NULL; +static struct pipe_resource *samptex = NULL; +static struct pipe_surface *surf = NULL; +static struct pipe_sampler_view *sv = NULL; +static void *sampler = NULL; +static void *window = NULL; + +struct vertex { + float position[4]; + float color[4]; +}; + +static struct vertex vertices[] = +{ + { { 0.9, -0.9, 0.0, 1.0 }, + { 1, 0, 0, 1 } }, + + { { 0.9, 0.9, 0.0, 1.0 }, + { 1, 1, 0, 1 } }, + + { {-0.9, 0.9, 0.0, 1.0 }, + { 0, 1, 0, 1 } }, + + { {-0.9, -0.9, 0.0, 1.0 }, + { 0, 0, 0, 1 } }, +}; + + + + +static void set_viewport( float x, float y, + float width, float height, + float near, float far) +{ + float z = far; + float half_width = (float)width / 2.0f; + float half_height = (float)height / 2.0f; + float half_depth = ((float)far - (float)near) / 2.0f; + struct pipe_viewport_state vp; + + vp.scale[0] = half_width; + vp.scale[1] = half_height; + vp.scale[2] = half_depth; + vp.scale[3] = 1.0f; + + vp.translate[0] = half_width + x; + vp.translate[1] = half_height + y; + vp.translate[2] = half_depth + z; + vp.translate[3] = 0.0f; + + ctx->set_viewport_state( ctx, &vp ); +} + +static void set_vertices( void ) +{ + struct pipe_vertex_element ve[2]; + struct pipe_vertex_buffer vbuf; + void *handle; + + memset(ve, 0, sizeof ve); + + ve[0].src_offset = Offset(struct vertex, position); + ve[0].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT; + ve[1].src_offset = Offset(struct vertex, color); + ve[1].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT; + + handle = ctx->create_vertex_elements_state(ctx, 2, ve); + ctx->bind_vertex_elements_state(ctx, handle); + + + vbuf.stride = sizeof( struct vertex ); + vbuf.buffer_offset = 0; + vbuf.buffer = screen->user_buffer_create(screen, + vertices, + sizeof(vertices), + PIPE_BIND_VERTEX_BUFFER); + + ctx->set_vertex_buffers(ctx, 1, &vbuf); +} + +static void set_vertex_shader( void ) +{ + void *handle; + const char *text = + "VERT\n" + "DCL IN[0]\n" + "DCL IN[1]\n" + "DCL OUT[0], POSITION\n" + "DCL OUT[1], GENERIC[0]\n" + " 0: MOV OUT[1], IN[1]\n" + " 1: MOV OUT[0], IN[0]\n" + " 2: END\n"; + + handle = graw_parse_vertex_shader(ctx, text); + ctx->bind_vs_state(ctx, handle); +} + +static void set_fragment_shader( void ) +{ + void *handle; + const char *text = + "FRAG\n" + "DCL IN[0], GENERIC[0], PERSPECTIVE\n" + "DCL OUT[0], COLOR\n" + "DCL TEMP[0]\n" + "DCL SAMP[0]\n" + "DCL RES[0], 2D, FLOAT\n" + " 0: SAMPLE TEMP[0], IN[0], RES[0], SAMP[0]\n" + " 1: MOV OUT[0], TEMP[0]\n" + " 2: END\n"; + + handle = graw_parse_fragment_shader(ctx, text); + ctx->bind_fs_state(ctx, handle); +} + + +static void draw( void ) +{ + float clear_color[4] = {.5,.5,.5,1}; + + ctx->clear(ctx, PIPE_CLEAR_COLOR, clear_color, 0, 0); + util_draw_arrays(ctx, PIPE_PRIM_QUADS, 0, 4); + ctx->flush(ctx, PIPE_FLUSH_RENDER_CACHE, NULL); + + graw_save_surface_to_file(ctx, surf, NULL); + + screen->flush_frontbuffer(screen, rttex, 0, 0, window); +} + +#define SIZE 16 + +static void init_tex( void ) +{ + struct pipe_sampler_view sv_template; + struct pipe_sampler_state sampler_desc; + struct pipe_resource templat; + struct pipe_box box; + ubyte tex2d[SIZE][SIZE][4]; + int s, t; + +#if (SIZE != 2) + for (s = 0; s < SIZE; s++) { + for (t = 0; t < SIZE; t++) { + if (0) { + int x = (s ^ t) & 1; + tex2d[t][s][0] = (x) ? 0 : 63; + tex2d[t][s][1] = (x) ? 0 : 128; + tex2d[t][s][2] = 0; + tex2d[t][s][3] = 0xff; + } + else { + int x = ((s ^ t) >> 2) & 1; + tex2d[t][s][0] = s*255/(SIZE-1); + tex2d[t][s][1] = t*255/(SIZE-1); + tex2d[t][s][2] = (x) ? 0 : 128; + tex2d[t][s][3] = 0xff; + } + } + } +#else + tex2d[0][0][0] = 0; + tex2d[0][0][1] = 255; + tex2d[0][0][2] = 255; + tex2d[0][0][3] = 0; + + tex2d[0][1][0] = 0; + tex2d[0][1][1] = 0; + tex2d[0][1][2] = 255; + tex2d[0][1][3] = 255; + + tex2d[1][0][0] = 255; + tex2d[1][0][1] = 255; + tex2d[1][0][2] = 0; + tex2d[1][0][3] = 255; + + tex2d[1][1][0] = 255; + tex2d[1][1][1] = 0; + tex2d[1][1][2] = 0; + tex2d[1][1][3] = 255; +#endif + + templat.target = PIPE_TEXTURE_2D; + templat.format = PIPE_FORMAT_B8G8R8A8_UNORM; + templat.width0 = SIZE; + templat.height0 = SIZE; + templat.depth0 = 1; + templat.last_level = 0; + templat.nr_samples = 1; + templat.bind = PIPE_BIND_SAMPLER_VIEW; + + + samptex = screen->resource_create(screen, + &templat); + if (samptex == NULL) + exit(4); + + u_box_2d(0,0,SIZE,SIZE, &box); + + ctx->transfer_inline_write(ctx, + samptex, + 0, + PIPE_TRANSFER_WRITE, + &box, + tex2d, + sizeof tex2d[0], + sizeof tex2d); + + /* Possibly read back & compare against original data: + */ + if (0) + { + struct pipe_transfer *t; + uint32_t *ptr; + t = pipe_get_transfer(ctx, samptex, + 0, 0, /* level, layer */ + PIPE_TRANSFER_READ, + 0, 0, SIZE, SIZE); /* x, y, width, height */ + + ptr = ctx->transfer_map(ctx, t); + + if (memcmp(ptr, tex2d, sizeof tex2d) != 0) { + assert(0); + exit(9); + } + + ctx->transfer_unmap(ctx, t); + + ctx->transfer_destroy(ctx, t); + } + + memset(&sv_template, 0, sizeof sv_template); + sv_template.format = samptex->format; + sv_template.texture = samptex; + sv_template.swizzle_r = 0; + sv_template.swizzle_g = 1; + sv_template.swizzle_b = 2; + sv_template.swizzle_a = 3; + sv = ctx->create_sampler_view(ctx, samptex, &sv_template); + if (sv == NULL) + exit(5); + + ctx->set_fragment_sampler_views(ctx, 1, &sv); + + + memset(&sampler_desc, 0, sizeof sampler_desc); + sampler_desc.wrap_s = PIPE_TEX_WRAP_REPEAT; + sampler_desc.wrap_t = PIPE_TEX_WRAP_REPEAT; + sampler_desc.wrap_r = PIPE_TEX_WRAP_REPEAT; + sampler_desc.min_img_filter = PIPE_TEX_FILTER_NEAREST; + sampler_desc.min_mip_filter = PIPE_TEX_MIPFILTER_NONE; + sampler_desc.mag_img_filter = PIPE_TEX_FILTER_NEAREST; + sampler_desc.compare_mode = PIPE_TEX_COMPARE_NONE; + sampler_desc.compare_func = 0; + sampler_desc.normalized_coords = 1; + sampler_desc.max_anisotropy = 0; + + sampler = ctx->create_sampler_state(ctx, &sampler_desc); + if (sampler == NULL) + exit(6); + + ctx->bind_fragment_sampler_states(ctx, 1, &sampler); + +} + +static void init( void ) +{ + struct pipe_framebuffer_state fb; + struct pipe_resource templat; + struct pipe_surface surf_tmpl; + int i; + + /* It's hard to say whether window or screen should be created + * first. Different environments would prefer one or the other. + * + * Also, no easy way of querying supported formats if the screen + * cannot be created first. + */ + for (i = 0; formats[i] != PIPE_FORMAT_NONE; i++) { + screen = graw_create_window_and_screen(0, 0, 300, 300, + formats[i], + &window); + if (window && screen) + break; + } + if (!screen || !window) { + fprintf(stderr, "Unable to create window\n"); + exit(1); + } + + ctx = screen->context_create(screen, NULL); + if (ctx == NULL) + exit(3); + + templat.target = PIPE_TEXTURE_2D; + templat.format = formats[i]; + templat.width0 = WIDTH; + templat.height0 = HEIGHT; + templat.depth0 = 1; + templat.array_size = 1; + templat.last_level = 0; + templat.nr_samples = 1; + templat.bind = (PIPE_BIND_RENDER_TARGET | + PIPE_BIND_DISPLAY_TARGET); + + rttex = screen->resource_create(screen, + &templat); + if (rttex == NULL) + exit(4); + + surf_tmpl.format = templat.format; + surf_tmpl.usage = PIPE_BIND_RENDER_TARGET; + surf_tmpl.u.tex.level = 0; + surf_tmpl.u.tex.first_layer = 0; + surf_tmpl.u.tex.last_layer = 0; + surf = ctx->create_surface(ctx, rttex, &surf_tmpl); + if (surf == NULL) + exit(5); + + memset(&fb, 0, sizeof fb); + fb.nr_cbufs = 1; + fb.width = WIDTH; + fb.height = HEIGHT; + fb.cbufs[0] = surf; + + ctx->set_framebuffer_state(ctx, &fb); + + { + struct pipe_blend_state blend; + void *handle; + memset(&blend, 0, sizeof blend); + blend.rt[0].colormask = PIPE_MASK_RGBA; + handle = ctx->create_blend_state(ctx, &blend); + ctx->bind_blend_state(ctx, handle); + } + + { + struct pipe_depth_stencil_alpha_state depthstencil; + void *handle; + memset(&depthstencil, 0, sizeof depthstencil); + handle = ctx->create_depth_stencil_alpha_state(ctx, &depthstencil); + ctx->bind_depth_stencil_alpha_state(ctx, handle); + } + + { + struct pipe_rasterizer_state rasterizer; + void *handle; + memset(&rasterizer, 0, sizeof rasterizer); + rasterizer.cull_face = PIPE_FACE_NONE; + rasterizer.gl_rasterization_rules = 1; + handle = ctx->create_rasterizer_state(ctx, &rasterizer); + ctx->bind_rasterizer_state(ctx, handle); + } + + set_viewport(0, 0, WIDTH, HEIGHT, 30, 1000); + + init_tex(); + + set_vertices(); + set_vertex_shader(); + set_fragment_shader(); +} + +static void args(int argc, char *argv[]) +{ + int i; + + for (i = 1; i < argc;) { + if (graw_parse_args(&i, argc, argv)) { + continue; + } + exit(1); + } +} + + +int main( int argc, char *argv[] ) +{ + args(argc, argv); + init(); + + graw_set_display_func( draw ); + graw_main_loop(); + return 0; +} |