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-rw-r--r--SConstruct23
-rw-r--r--src/gallium/include/state_tracker/graw.h23
-rw-r--r--src/gallium/targets/SConscript20
-rw-r--r--src/gallium/targets/graw-xlib/SConscript1
-rw-r--r--src/gallium/targets/graw-xlib/graw_util.c36
-rw-r--r--src/gallium/targets/graw-xlib/graw_xlib.c72
-rw-r--r--src/gallium/tests/graw/SConscript4
-rw-r--r--src/gallium/tests/graw/clear.c76
-rw-r--r--src/gallium/tests/graw/quad-tex.c404
9 files changed, 593 insertions, 66 deletions
diff --git a/SConstruct b/SConstruct
index 28ed6ea78c0..c843b41b0dc 100644
--- a/SConstruct
+++ b/SConstruct
@@ -31,6 +31,7 @@ import common
# Configuration options
default_statetrackers = 'mesa'
+default_targets = 'none'
if common.default_platform in ('linux', 'freebsd', 'darwin'):
default_drivers = 'softpipe,failover,svga,i915,i965,trace,identity,llvmpipe'
@@ -54,6 +55,28 @@ opts.Add(ListVariable('drivers', 'pipe drivers to build', default_drivers,
opts.Add(ListVariable('winsys', 'winsys drivers to build', default_winsys,
['xlib', 'vmware', 'i915', 'i965', 'gdi', 'radeon', 'graw-xlib']))
+opts.Add(ListVariable('targets', 'driver targets to build', default_targets,
+ ['dri-i915',
+ 'dri-i965',
+ 'dri-nouveau',
+ 'dri-radeong',
+ 'dri-swrast',
+ 'dri-vmwgfx',
+ 'egl-i915',
+ 'egl-i965',
+ 'egl-nouveau',
+ 'egl-radeon',
+ 'egl-swrast',
+ 'egl-vmwgfx',
+ 'graw-xlib',
+ 'libgl-gdi',
+ 'libgl-xlib',
+ 'xorg-i915',
+ 'xorg-i965',
+ 'xorg-nouveau',
+ 'xorg-radeon',
+ 'xorg-vmwgfx']))
+
opts.Add(EnumVariable('MSVS_VERSION', 'MS Visual C++ version', None, allowed_values=('7.1', '8.0', '9.0')))
env = Environment(
diff --git a/src/gallium/include/state_tracker/graw.h b/src/gallium/include/state_tracker/graw.h
index 385e4d7718e..e5b298e03d9 100644
--- a/src/gallium/include/state_tracker/graw.h
+++ b/src/gallium/include/state_tracker/graw.h
@@ -17,20 +17,27 @@
#include "pipe/p_format.h"
struct pipe_screen;
-
-PUBLIC struct pipe_screen *graw_init( void );
+struct pipe_context;
/* Returns a handle to be used with flush_frontbuffer()/present().
*
* Query format support with screen::is_format_supported and usage
* XXX.
*/
-PUBLIC void *graw_create_window( int x,
- int y,
- unsigned width,
- unsigned height,
- enum pipe_format format );
+PUBLIC struct pipe_screen *graw_create_window_and_screen( int x,
+ int y,
+ unsigned width,
+ unsigned height,
+ enum pipe_format format,
+ void **handle);
+
+PUBLIC void graw_set_display_func( void (*func)( void ) );
+PUBLIC void graw_main_loop( void );
+
+PUBLIC void *graw_parse_vertex_shader( struct pipe_context *pipe,
+ const char *text );
-PUBLIC void graw_destroy_window( void *handle );
+PUBLIC void *graw_parse_fragment_shader( struct pipe_context *pipe,
+ const char *text );
#endif
diff --git a/src/gallium/targets/SConscript b/src/gallium/targets/SConscript
index ca3e1ec1327..9077cbf6a45 100644
--- a/src/gallium/targets/SConscript
+++ b/src/gallium/targets/SConscript
@@ -1,5 +1,8 @@
+import os
Import('*')
+# Compatibility with old build scripts:
+#
if 'xlib' in env['winsys']:
SConscript([
'libgl-xlib/SConscript',
@@ -10,12 +13,7 @@ if 'gdi' in env['winsys']:
'libgl-gdi/SConscript',
])
-if env['platform'] == 'linux' and 'xlib' in env['winsys'] and 'graw-xlib' in env['winsys']:
- SConscript([
- 'graw-xlib/SConscript',
- ])
-else:
- if not env['msvc']:
+if not 'graw-xlib' in env['targets'] and not env['msvc']:
# XXX: disable until MSVC can link correctly
SConscript('graw-null/SConscript')
@@ -30,3 +28,13 @@ if 'xorg' in env['statetrackers']:
SConscript([
'xorg-vmwgfx/SConscript',
])
+
+# Ideally all non-target directories would produce convenience
+# libraries, and the actual shared libraries and other installables
+# would be finally assembled in the targets subtree:
+#
+for target in env['targets']:
+ SConscript(os.path.join(target, 'SConscript'))
+
+
+
diff --git a/src/gallium/targets/graw-xlib/SConscript b/src/gallium/targets/graw-xlib/SConscript
index ad84841922d..40332fa4e14 100644
--- a/src/gallium/targets/graw-xlib/SConscript
+++ b/src/gallium/targets/graw-xlib/SConscript
@@ -25,6 +25,7 @@ env.Append(CPPPATH = [
sources = [
'graw_xlib.c',
+ 'graw_util.c',
]
if True:
diff --git a/src/gallium/targets/graw-xlib/graw_util.c b/src/gallium/targets/graw-xlib/graw_util.c
new file mode 100644
index 00000000000..147532cdee1
--- /dev/null
+++ b/src/gallium/targets/graw-xlib/graw_util.c
@@ -0,0 +1,36 @@
+
+#include "pipe/p_compiler.h"
+#include "pipe/p_context.h"
+#include "tgsi/tgsi_text.h"
+#include "util/u_memory.h"
+#include "state_tracker/graw.h"
+
+
+/* Helper functions. These are the same for all graw implementations.
+ */
+void *graw_parse_vertex_shader(struct pipe_context *pipe,
+ const char *text)
+{
+ struct tgsi_token tokens[1024];
+ struct pipe_shader_state state;
+
+ if (!tgsi_text_translate(text, tokens, Elements(tokens)))
+ return NULL;
+
+ state.tokens = tokens;
+ return pipe->create_vs_state(pipe, &state);
+}
+
+void *graw_parse_fragment_shader(struct pipe_context *pipe,
+ const char *text)
+{
+ struct tgsi_token tokens[1024];
+ struct pipe_shader_state state;
+
+ if (!tgsi_text_translate(text, tokens, Elements(tokens)))
+ return NULL;
+
+ state.tokens = tokens;
+ return pipe->create_fs_state(pipe, &state);
+}
+
diff --git a/src/gallium/targets/graw-xlib/graw_xlib.c b/src/gallium/targets/graw-xlib/graw_xlib.c
index 21715c26fdc..41120ba3c70 100644
--- a/src/gallium/targets/graw-xlib/graw_xlib.c
+++ b/src/gallium/targets/graw-xlib/graw_xlib.c
@@ -1,4 +1,5 @@
#include "pipe/p_compiler.h"
+#include "pipe/p_context.h"
#include "util/u_debug.h"
#include "util/u_memory.h"
#include "target-helpers/wrap_screen.h"
@@ -27,21 +28,18 @@
static struct {
Display *display;
+ void (*draw)(void);
} graw;
-struct pipe_screen *
-graw_init( void )
+static struct pipe_screen *
+graw_create_screen( void )
{
const char *default_driver;
const char *driver;
struct pipe_screen *screen = NULL;
struct sw_winsys *winsys = NULL;
- graw.display = XOpenDisplay(NULL);
- if (graw.display == NULL)
- return NULL;
-
/* Create the underlying winsys, which performs presents to Xlib
* drawables:
*/
@@ -78,14 +76,16 @@ graw_init( void )
-void *
-graw_create_window( int x,
- int y,
- unsigned width,
- unsigned height,
- enum pipe_format format )
+struct pipe_screen *
+graw_create_window_and_screen( int x,
+ int y,
+ unsigned width,
+ unsigned height,
+ enum pipe_format format,
+ void **handle)
{
- struct xlib_drawable *handle = NULL;
+ struct pipe_screen *screen = NULL;
+ struct xlib_drawable *xlib_handle = NULL;
XSetWindowAttributes attr;
Window root;
Window win = 0;
@@ -94,6 +94,9 @@ graw_create_window( int x,
int n;
int scrnum;
+ graw.display = XOpenDisplay(NULL);
+ if (graw.display == NULL)
+ return NULL;
scrnum = DefaultScreen( graw.display );
root = RootWindow( graw.display, scrnum );
@@ -105,8 +108,8 @@ graw_create_window( int x,
if (graw.display == NULL)
goto fail;
- handle = CALLOC_STRUCT(xlib_drawable);
- if (handle == NULL)
+ xlib_handle = CALLOC_STRUCT(xlib_drawable);
+ if (xlib_handle == NULL)
goto fail;
@@ -148,7 +151,6 @@ graw_create_window( int x,
None, (char **)NULL, 0, &sizehints);
}
- XFree(visinfo);
XMapWindow(graw.display, win);
while (1) {
XEvent e;
@@ -158,14 +160,27 @@ graw_create_window( int x,
}
}
- handle->visual = visinfo->visual;
- handle->drawable = (Drawable)win;
- handle->depth = visinfo->depth;
- return (void *)handle;
+ xlib_handle->visual = visinfo->visual;
+ xlib_handle->drawable = (Drawable)win;
+ xlib_handle->depth = visinfo->depth;
+ *handle = (void *)xlib_handle;
+
+ screen = graw_create_screen();
+ if (screen == NULL)
+ goto fail;
-fail:
- FREE(handle);
XFree(visinfo);
+ return screen;
+
+fail:
+ if (screen)
+ screen->destroy(screen);
+
+ if (xlib_handle)
+ FREE(xlib_handle);
+
+ if (visinfo)
+ XFree(visinfo);
if (win)
XDestroyWindow(graw.display, win);
@@ -174,8 +189,19 @@ fail:
}
+void
+graw_set_display_func( void (*draw)( void ) )
+{
+ graw.draw = draw;
+}
+
void
-graw_destroy_window( void *xlib_drawable )
+graw_main_loop( void )
{
+ int i;
+ for (i = 0; i < 10; i++) {
+ graw.draw();
+ sleep(1);
+ }
}
diff --git a/src/gallium/tests/graw/SConscript b/src/gallium/tests/graw/SConscript
index 8a92ac2c499..7eab973db31 100644
--- a/src/gallium/tests/graw/SConscript
+++ b/src/gallium/tests/graw/SConscript
@@ -12,7 +12,9 @@ env.Prepend(LIBPATH = [graw.dir])
env.Prepend(LIBS = ['graw'])
progs = [
- 'clear'
+ 'clear',
+ 'tri',
+ 'quad-tex',
]
for prog in progs:
diff --git a/src/gallium/tests/graw/clear.c b/src/gallium/tests/graw/clear.c
index 84dd7807337..28c986eee64 100644
--- a/src/gallium/tests/graw/clear.c
+++ b/src/gallium/tests/graw/clear.c
@@ -20,33 +20,58 @@ enum pipe_format formats[] = {
static const int WIDTH = 300;
static const int HEIGHT = 300;
-int main( int argc, char *argv[] )
+struct pipe_screen *screen;
+struct pipe_context *ctx;
+struct pipe_surface *surf;
+static void *window = NULL;
+
+static void draw( void )
+{
+ float clear_color[4] = {1,0,1,1};
+
+ ctx->clear(ctx, PIPE_CLEAR_COLOR, clear_color, 0, 0);
+ ctx->flush(ctx, PIPE_FLUSH_RENDER_CACHE, NULL);
+
+#if 0
+ /* At the moment, libgraw leaks out/makes available some of the
+ * symbols from gallium/auxiliary, including these debug helpers.
+ * Will eventually want to bless some of these paths, and lock the
+ * others down so they aren't accessible from test programs.
+ *
+ * This currently just happens to work on debug builds - a release
+ * build will probably fail to link here:
+ */
+ debug_dump_surface_bmp(ctx, "result.bmp", surf);
+#endif
+
+ screen->flush_frontbuffer(screen, surf, window);
+}
+
+static void init( void )
{
- struct pipe_screen *screen;
- struct pipe_context *pipe;
- struct pipe_surface *surf;
struct pipe_framebuffer_state fb;
struct pipe_resource *tex, templat;
- void *window = NULL;
- float clear_color[4] = {1,0,1,1};
int i;
- screen = graw_init();
- if (screen == NULL)
- exit(1);
-
+ /* 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;
window == NULL && formats[i] != PIPE_FORMAT_NONE;
i++) {
- window = graw_create_window(0,0,300,300, formats[i]);
+ screen = graw_create_window_and_screen(0,0,300,300,
+ formats[i],
+ &window);
}
-
if (window == NULL)
exit(2);
- pipe = screen->context_create(screen, NULL);
- if (pipe == NULL)
+ ctx = screen->context_create(screen, NULL);
+ if (ctx == NULL)
exit(3);
templat.target = PIPE_TEXTURE_2D;
@@ -57,10 +82,10 @@ int main( int argc, char *argv[] )
templat.last_level = 0;
templat.nr_samples = 1;
templat.bind = (PIPE_BIND_RENDER_TARGET |
- PIPE_BIND_DISPLAY_TARGET);
+ PIPE_BIND_DISPLAY_TARGET);
tex = screen->resource_create(screen,
- &templat);
+ &templat);
if (tex == NULL)
exit(4);
@@ -76,21 +101,16 @@ int main( int argc, char *argv[] )
fb.height = HEIGHT;
fb.cbufs[0] = surf;
- pipe->set_framebuffer_state(pipe, &fb);
- pipe->clear(pipe, PIPE_CLEAR_COLOR, clear_color, 0, 0);
- pipe->flush(pipe, PIPE_FLUSH_RENDER_CACHE, NULL);
+ ctx->set_framebuffer_state(ctx, &fb);
+}
- /* At the moment, libgraw includes/makes available all the symbols
- * from gallium/auxiliary, including these debug helpers. Will
- * eventually want to bless some of these paths, and lock the
- * others down so they aren't accessible from test programs.
- */
- if (0)
- debug_dump_surface_bmp(pipe, "result.bmp", surf);
- screen->flush_frontbuffer(screen, surf, window);
- os_time_sleep(100*1000*100);
+int main( int argc, char *argv[] )
+{
+ init();
+ graw_set_display_func( draw );
+ graw_main_loop();
return 0;
}
diff --git a/src/gallium/tests/graw/quad-tex.c b/src/gallium/tests/graw/quad-tex.c
new file mode 100644
index 00000000000..91b1cf49edd
--- /dev/null
+++ b/src/gallium/tests/graw/quad-tex.c
@@ -0,0 +1,404 @@
+/* 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 <unistd.h> /* for sleep() */
+
+#include "util/u_debug.h" /* debug_dump_surface_bmp() */
+#include "util/u_inlines.h"
+#include "util/u_memory.h" /* Offset() */
+#include "util/u_box.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.max_index = sizeof(vertices) / vbuf.stride;
+ 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"
+ " 0: TXP TEMP[0], IN[0], SAMP[0], 2D\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);
+ ctx->draw_arrays(ctx, PIPE_PRIM_QUADS, 0, 4);
+ ctx->flush(ctx, PIPE_FLUSH_RENDER_CACHE, NULL);
+
+#if 0
+ /* At the moment, libgraw leaks out/makes available some of the
+ * symbols from gallium/auxiliary, including these debug helpers.
+ * Will eventually want to bless some of these paths, and lock the
+ * others down so they aren't accessible from test programs.
+ *
+ * This currently just happens to work on debug builds - a release
+ * build will probably fail to link here:
+ */
+ debug_dump_surface_bmp(ctx, "result.bmp", surf);
+#endif
+
+ screen->flush_frontbuffer(screen, surf, 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,
+ u_subresource(0,0),
+ 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, 0, /* face, level, zslice */
+ 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.first_level = 0;
+ sv_template.last_level = 0;
+ 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;
+ 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;
+ window == NULL && formats[i] != PIPE_FORMAT_NONE;
+ i++) {
+
+ screen = graw_create_window_and_screen(0,0,300,300,
+ formats[i],
+ &window);
+ }
+
+ 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.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 = screen->get_tex_surface(screen, rttex, 0, 0, 0,
+ PIPE_BIND_RENDER_TARGET |
+ PIPE_BIND_DISPLAY_TARGET);
+ 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.front_winding = PIPE_WINDING_CW;
+ rasterizer.cull_mode = PIPE_WINDING_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();
+}
+
+
+int main( int argc, char *argv[] )
+{
+ init();
+
+ graw_set_display_func( draw );
+ graw_main_loop();
+ return 0;
+}