Looks good. A future improvement could be querying PIPE_CAP_MAX_TEXTURE_2D_LEVELS instead of using a constant width/height.
Jose ----- Original Message ----- > Used to test rasterization, because we often breakdown on > subdivision of triangles with long edges. > > Signed-off-by: Zack Rusin <za...@vmware.com> > --- > src/gallium/tests/graw/SConscript | 1 + > src/gallium/tests/graw/tri-large.c | 173 > +++++++++++++++++++++++++++++++++++++ > 2 files changed, 174 insertions(+) > create mode 100644 src/gallium/tests/graw/tri-large.c > > diff --git a/src/gallium/tests/graw/SConscript > b/src/gallium/tests/graw/SConscript > index 8740ff3..8723807 100644 > --- a/src/gallium/tests/graw/SConscript > +++ b/src/gallium/tests/graw/SConscript > @@ -29,6 +29,7 @@ progs = [ > 'tex-srgb', > 'tex-swizzle', > 'tri', > + 'tri-large', > 'tri-gs', > 'tri-instanced', > 'vs-test', > diff --git a/src/gallium/tests/graw/tri-large.c > b/src/gallium/tests/graw/tri-large.c > new file mode 100644 > index 0000000..3fbbfb3 > --- /dev/null > +++ b/src/gallium/tests/graw/tri-large.c > @@ -0,0 +1,173 @@ > +/* Display a cleared blue window. This demo has no dependencies on > + * any utility code, just the graw interface and gallium. > + */ > + > +#include "graw_util.h" > +#include "util/u_debug.h" > + > +#include <stdio.h> > + > +static struct graw_info info; > + > +static const int WIDTH = 4*2048; > +static const int HEIGHT = 4*2048; > + > + > +struct vertex { > + float position[4]; > + float color[4]; > +}; > + > +static boolean FlatShade = FALSE; > + > + > +static struct vertex vertices[3] = > +{ > + { > + { -1.0f, -1.0f, 0.0f, 1.0f }, > + { 1.0f, 0.0f, 0.0f, 1.0f } > + }, > + { > + { -1.0f, 1.0f, 0.0f, 1.0f }, > + { 0.0f, 1.0f, 0.0f, 1.0f } > + }, > + { > + { 1.0f, 1.0f, 0.0f, 1.0f }, > + { 0.0f, 0.0f, 1.0f, 1.0f } > + } > +}; > + > + > +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 = info.ctx->create_vertex_elements_state(info.ctx, 2, ve); > + info.ctx->bind_vertex_elements_state(info.ctx, handle); > + > + memset(&vbuf, 0, sizeof vbuf); > + > + vbuf.stride = sizeof( struct vertex ); > + vbuf.buffer_offset = 0; > + vbuf.buffer = pipe_buffer_create_with_data(info.ctx, > + PIPE_BIND_VERTEX_BUFFER, > + PIPE_USAGE_STATIC, > + sizeof(vertices), > + vertices); > + > + info.ctx->set_vertex_buffers(info.ctx, 0, 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], COLOR\n" > + " 0: MOV OUT[1], IN[1]\n" > + " 1: MOV OUT[0], IN[0]\n" > + " 2: END\n"; > + > + handle = graw_parse_vertex_shader(info.ctx, text); > + info.ctx->bind_vs_state(info.ctx, handle); > +} > + > + > +static void set_fragment_shader( void ) > +{ > + void *handle; > + const char *text = > + "FRAG\n" > + "DCL IN[0], COLOR, LINEAR\n" > + "DCL OUT[0], COLOR\n" > + " 0: MOV OUT[0], IN[0]\n" > + " 1: END\n"; > + > + handle = graw_parse_fragment_shader(info.ctx, text); > + info.ctx->bind_fs_state(info.ctx, handle); > +} > + > + > +static void draw( void ) > +{ > + union pipe_color_union clear_color = { {1,0,1,1} }; > + > + info.ctx->clear(info.ctx, PIPE_CLEAR_COLOR, &clear_color, 0, 0); > + util_draw_arrays(info.ctx, PIPE_PRIM_TRIANGLES, 0, 3); > + info.ctx->flush(info.ctx, NULL, 0); > + > + graw_save_surface_to_file(info.ctx, info.color_surf[0], NULL); > + > + graw_util_flush_front(&info); > +} > + > + > +static void init( void ) > +{ > + if (!graw_util_create_window(&info, WIDTH, HEIGHT, 1, FALSE)) > + exit(1); > + > + graw_util_default_state(&info, FALSE); > + > + { > + struct pipe_rasterizer_state rasterizer; > + void *handle; > + memset(&rasterizer, 0, sizeof rasterizer); > + rasterizer.cull_face = PIPE_FACE_NONE; > + rasterizer.half_pixel_center = 1; > + rasterizer.bottom_edge_rule = 1; > + rasterizer.flatshade = FlatShade; > + rasterizer.depth_clip = 1; > + handle = info.ctx->create_rasterizer_state(info.ctx, &rasterizer); > + info.ctx->bind_rasterizer_state(info.ctx, handle); > + } > + > + > + graw_util_viewport(&info, 0, 0, WIDTH, HEIGHT, 30, 1000); > + > + 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)) { > + /* ok */ > + } > + else if (strcmp(argv[i], "-f") == 0) { > + FlatShade = TRUE; > + i++; > + } > + else { > + printf("Invalid arg %s\n", argv[i]); > + exit(1); > + } > + } > +} > + > +int main( int argc, char *argv[] ) > +{ > + args(argc, argv); > + init(); > + > + graw_set_display_func( draw ); > + graw_main_loop(); > + return 0; > +} > -- > 1.8.3.2 > _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev