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// Copyright 2012 Intel Corporation
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
/// @file
/// @brief Test basic GL rendering with all platform/gl_api combinations.
///
/// Each test does the following:
/// 1. Initialize waffle with a platform and gl_api.
/// 2. Create a context and window.
/// 3. On the window call waffle_make_current, glClear,
/// and waffle_swap_buffers.
/// 4. Verify the window contents with glReadPixels.
/// 5. Tear down all waffle state.
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <waffle/waffle.h>
#include <waffle_test/waffle_test.h>
enum {
// Choosing a smaller window would shorten the execution time of pixel
// validation, but Windows 7 enforces a minimum size.
WINDOW_WIDTH = 320,
WINDOW_HEIGHT = 240,
};
static const float RED_F = 1.00;
static const float GREEN_F = 0.00;
static const float BLUE_F = 1.00;
static const float ALPHA_F = 1.00;
static const uint8_t RED_UB = 0xff;
static const uint8_t GREEN_UB = 0x00;
static const uint8_t BLUE_UB = 0xff;
static const uint8_t ALPHA_UB = 0xff;
static const int32_t config_attrib_list[] = {
WAFFLE_RED_SIZE, 8,
WAFFLE_GREEN_SIZE, 8,
WAFFLE_BLUE_SIZE, 8,
WAFFLE_ALPHA_SIZE, 0,
0,
};
static uint8_t pixels[4 * WINDOW_WIDTH * WINDOW_HEIGHT];
#define ASSERT_GL(statement) \
do { \
statement; \
ASSERT_TRUE(!glGetError()); \
} while (0)
/// Use this when @a cond will corrupt future tests.
#define ABORT_IF(cond) \
do { \
if (cond) { \
TEST_ERROR_PRINTF("expect %x; aborting...", #cond); \
abort(); \
} \
} while (0)
/// @}
/// @defgroup GL declarations
/// @{
typedef unsigned int GLenum;
typedef unsigned char GLboolean;
typedef unsigned int GLbitfield;
typedef void GLvoid;
typedef signed char GLbyte; /* 1-byte signed */
typedef short GLshort; /* 2-byte signed */
typedef int GLint; /* 4-byte signed */
typedef unsigned char GLubyte; /* 1-byte unsigned */
typedef unsigned short GLushort; /* 2-byte unsigned */
typedef unsigned int GLuint; /* 4-byte unsigned */
typedef int GLsizei; /* 4-byte signed */
typedef float GLfloat; /* single precision float */
typedef float GLclampf; /* single precision float in [0,1] */
typedef double GLdouble; /* double precision float */
typedef double GLclampd; /* double precision float in [0,1] */
#define GL_UNSIGNED_BYTE 0x1401
#define GL_UNSIGNED_INT 0x1405
#define GL_FLOAT 0x1406
#define GL_RGB 0x1907
#define GL_RGBA 0x1908
#define GL_COLOR_BUFFER_BIT 0x00004000
static GLenum (*glGetError)(void);
static void (*glClearColor)(GLclampf red,
GLclampf green,
GLclampf blue,
GLclampf alpha);
static void (*glClear)(GLbitfield mask);
static void (*glReadPixels)(GLint x, GLint y,
GLsizei width, GLsizei height,
GLenum format, GLenum type,
GLvoid *pixels );
/// @}
static void
testgroup_gl_basic_setup(void)
{
memset(pixels, 0, sizeof(pixels));
// If an earlier test failed, then we need to clean up after it here.
ABORT_IF(!waffle_finish());
}
static void
testgroup_gl_basic_teardown(void)
{
// empty
}
static void
gl_basic(int32_t platform, int32_t gl_api)
{
const int32_t init_attrib_list[] = {
WAFFLE_PLATFORM, platform,
WAFFLE_GL_API, gl_api,
0,
};
struct waffle_display *dpy = NULL;
struct waffle_config *config = NULL;
struct waffle_window *window = NULL;
struct waffle_context *ctx = NULL;
ASSERT_TRUE(waffle_init(init_attrib_list));
// Create objects.
ASSERT_TRUE(dpy = waffle_display_connect(NULL));
ASSERT_TRUE(config = waffle_config_choose(dpy, config_attrib_list));
ASSERT_TRUE(window = waffle_window_create(config,
WINDOW_WIDTH, WINDOW_HEIGHT));
ASSERT_TRUE(ctx = waffle_context_create(config, NULL));
// Get GL functions.
ASSERT_TRUE(glClear = waffle_dlsym_gl("glClear"));
ASSERT_TRUE(glClearColor = waffle_dlsym_gl("glClearColor"));
ASSERT_TRUE(glGetError = waffle_dlsym_gl("glGetError"));
ASSERT_TRUE(glReadPixels = waffle_dlsym_gl("glReadPixels"));
// Draw.
ASSERT_TRUE(waffle_make_current(dpy, window, ctx));
ASSERT_GL(glClearColor(RED_F, GREEN_F, BLUE_F, ALPHA_F));
ASSERT_GL(glClear(GL_COLOR_BUFFER_BIT));
ASSERT_GL(glReadPixels(0, 0, WINDOW_WIDTH, WINDOW_HEIGHT,
GL_RGBA, GL_UNSIGNED_BYTE,
pixels));
ASSERT_TRUE(waffle_window_swap_buffers(window));
// Probe color buffer.
//
// Fail at first failing pixel. If the draw fails, we don't want a terminal
// filled with error messages.
for (int y = 0 ; y < WINDOW_HEIGHT; ++y) {
for (int x = 0; x < WINDOW_WIDTH; ++x) {
uint8_t *p = &pixels[4 * (y * WINDOW_WIDTH + x)];
ASSERT_TRUE(p[0] == RED_UB);
ASSERT_TRUE(p[1] == GREEN_UB);
ASSERT_TRUE(p[2] == BLUE_UB);
ASSERT_TRUE(p[3] == ALPHA_UB);
}
}
// Teardown.
ABORT_IF(!waffle_make_current(dpy, NULL, NULL));
ASSERT_TRUE(waffle_window_destroy(window));
ASSERT_TRUE(waffle_context_destroy(ctx));
ASSERT_TRUE(waffle_config_destroy(config));
ASSERT_TRUE(waffle_display_disconnect(dpy));
ABORT_IF(!waffle_finish());
}
#ifdef WAFFLE_HAS_X11_EGL
TEST(gl_basic, x11_egl_gl)
{
gl_basic(WAFFLE_PLATFORM_X11_EGL, WAFFLE_GL);
}
TEST(gl_basic, x11_egl_gles1)
{
gl_basic(WAFFLE_PLATFORM_X11_EGL, WAFFLE_GLES1);
}
TEST(gl_basic, x11_egl_gles2)
{
gl_basic(WAFFLE_PLATFORM_X11_EGL, WAFFLE_GLES1);
}
#endif
static void
testsuite_gl_basic(void)
{
#ifdef WAFFLE_HAS_X11_EGL
TEST_RUN(gl_basic, x11_egl_gl);
TEST_RUN(gl_basic, x11_egl_gles1);
TEST_RUN(gl_basic, x11_egl_gles2);
#endif
}
static void (*test_suites[])(void) = {
testsuite_gl_basic,
0,
};
int
main(int argc, char *argv[])
{
return wt_main(&argc, argv, test_suites);
}
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