tests/graw: Add a bunch of tests.

These were rotting in an internal branch, but contain nothing confidential,
and would be much more useful if kept up-to-date with latest gallium
interface changes.

Several authors including Keith Whitwell, Zack Rusin, and Brian Paul.

1 files changed, 41 insertions, 146 deletions

diff --git a/src/gallium/tests/graw/tri.c b/src/gallium/tests/graw/tri.c
index fc5d66ad18f..75fa88cae9e 100644
--- a/src/gallium/tests/graw/tri.c
+++ b/src/gallium/tests/graw/tri.c
@@ -3,36 +3,22 @@
  */
 
 #include <stdio.h>
+#include "graw_util.h"
 
-#include "state_tracker/graw.h"
-#include "pipe/p_screen.h"
-#include "pipe/p_context.h"
-#include "pipe/p_state.h"
-#include "pipe/p_defines.h"
-
-#include "util/u_memory.h"      /* Offset() */
-#include "util/u_draw_quad.h"
-
-enum pipe_format formats[] = {
-   PIPE_FORMAT_R8G8B8A8_UNORM,
-   PIPE_FORMAT_B8G8R8A8_UNORM,
-   PIPE_FORMAT_NONE
-};
+static struct graw_info info;
 
 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_surface *surf = NULL;
-static struct pipe_resource *tex = NULL;
-static void *window = NULL;
 
 struct vertex {
    float position[4];
    float color[4];
 };
 
+static boolean FlatShade = FALSE;
+
+
 static struct vertex vertices[3] =
 {
    {
@@ -50,31 +36,6 @@ static struct vertex vertices[3] =
 };
 
 
-
-
-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];
@@ -88,20 +49,21 @@ static void set_vertices( void )
    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);
+   handle = info.ctx->create_vertex_elements_state(info.ctx, 2, ve);
+   info.ctx->bind_vertex_elements_state(info.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);
+   vbuf.buffer = info.screen->user_buffer_create(info.screen,
+                                                 vertices,
+                                                 sizeof(vertices),
+                                                 PIPE_BIND_VERTEX_BUFFER);
 
-   ctx->set_vertex_buffers(ctx, 1, &vbuf);
+   info.ctx->set_vertex_buffers(info.ctx, 1, &vbuf);
 }
 
+
 static void set_vertex_shader( void )
 {
    void *handle;
@@ -115,10 +77,11 @@ static void set_vertex_shader( void )
       "  1: MOV OUT[0], IN[0]\n"
       "  2: END\n";
 
-   handle = graw_parse_vertex_shader(ctx, text);
-   ctx->bind_vs_state(ctx, handle);
+   handle = graw_parse_vertex_shader(info.ctx, text);
+   info.ctx->bind_vs_state(info.ctx, handle);
 }
 
+
 static void set_fragment_shader( void )
 {
    void *handle;
@@ -129,8 +92,8 @@ static void set_fragment_shader( void )
       "  0: MOV OUT[0], IN[0]\n"
       "  1: END\n";
 
-   handle = graw_parse_fragment_shader(ctx, text);
-   ctx->bind_fs_state(ctx, handle);
+   handle = graw_parse_fragment_shader(info.ctx, text);
+   info.ctx->bind_fs_state(info.ctx, handle);
 }
 
 
@@ -138,100 +101,22 @@ static void draw( void )
 {
    union pipe_color_union clear_color = { {1,0,1,1} };
 
-   ctx->clear(ctx, PIPE_CLEAR_COLOR, &clear_color, 0, 0);
-   util_draw_arrays(ctx, PIPE_PRIM_TRIANGLES, 0, 3);
-   ctx->flush(ctx, NULL);
+   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);
 
-   graw_save_surface_to_file(ctx, surf, NULL);
+   graw_save_surface_to_file(info.ctx, info.color_surf[0], NULL);
 
-   screen->flush_frontbuffer(screen, tex, 0, 0, window);
+   graw_util_flush_front(&info);
 }
 
 
 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");
+   if (!graw_util_create_window(&info, WIDTH, HEIGHT, 1, FALSE))
       exit(1);
-   }
-   
-   ctx = screen->context_create(screen, NULL);
-   if (ctx == NULL) {
-      fprintf(stderr, "Unable to create context!\n");
-      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);
-   
-   tex = screen->resource_create(screen,
-                                 &templat);
-   if (tex == NULL) {
-      fprintf(stderr, "Unable to create screen texture!\n");
-      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, tex, &surf_tmpl);
-   if (surf == NULL) {
-      fprintf(stderr, "Unable to create tex surface!\n");
-      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);
-   }
+   graw_util_default_state(&info, FALSE);
 
    {
       struct pipe_rasterizer_state rasterizer;
@@ -239,12 +124,15 @@ static void init( void )
       memset(&rasterizer, 0, sizeof rasterizer);
       rasterizer.cull_face = PIPE_FACE_NONE;
       rasterizer.gl_rasterization_rules = 1;
+      rasterizer.flatshade = FlatShade;
       rasterizer.depth_clip = 1;
-      handle = ctx->create_rasterizer_state(ctx, &rasterizer);
-      ctx->bind_rasterizer_state(ctx, handle);
+      handle = info.ctx->create_rasterizer_state(info.ctx, &rasterizer);
+      info.ctx->bind_rasterizer_state(info.ctx, handle);
    }
 
-   set_viewport(0, 0, WIDTH, HEIGHT, 30, 1000);
+
+   graw_util_viewport(&info, 0, 0, WIDTH, HEIGHT, 30, 1000);
+
    set_vertices();
    set_vertex_shader();
    set_fragment_shader();
@@ -254,11 +142,18 @@ static void args(int argc, char *argv[])
 {
    int i;
 
-   for (i = 1; i < argc;) {
+   for (i = 1; i < argc; ) {
       if (graw_parse_args(&i, argc, argv)) {
-         continue;
+         /* ok */
+      }
+      else if (strcmp(argv[i], "-f") == 0) {
+         FlatShade = TRUE;
+         i++;
+      }
+      else {
+         printf("Invalid arg %s\n", argv[i]);
+         exit(1);
       }
-      exit(1);
    }
 }