static int32_t init_mouse (void)
{
if (!ppb_input_event_interface) {
ppb_input_event_interface =
(PPB_InputEvent *) NaCl_GetInterface(PPB_INPUT_EVENT_INTERFACE);
}
ppb_mouse_event_interface =
(PPB_MouseInputEvent *) NaCl_GetInterface(
PPB_MOUSE_INPUT_EVENT_INTERFACE);
if (!ppb_input_event_interface) {
DEBUG_LOG("Could not acquire PPB_InputEvent interface.\n");
return 0;
}
if (!ppb_mouse_event_interface) {
DEBUG_LOG("Could not acquire PPB_MouseInputEvent interface.\n");
return 0;
}
return 1;
}
int setup_sound(void)
{
ppb_audio_interface = (PPB_Audio *) NaCl_GetInterface(PPB_AUDIO_INTERFACE);
ppb_audio_config_interface = (PPB_AudioConfig *)
NaCl_GetInterface(PPB_AUDIO_CONFIG_INTERFACE);
pp_instance = NaCl_GetInstance();
if (!ppb_audio_interface) {
write_log("Could not acquire PPB_Audio interface.\n");
return 0;
}
if (!ppb_audio_config_interface) {
write_log("Could not acquire PPB_AudioConfig interface.\n");
return 0;
}
if (!pp_instance) {
write_log("Could not find current Pepper instance.\n");
return 0;
}
if (!init_sound()) return 0;
close_sound();
write_log("Pepper audio successfully set up.\n");
write_log("Frequency: %d\n", currprefs.sound_freq);
write_log("Stereo : %d\n", currprefs.sound_stereo);
write_log("Latency : %d\n", currprefs.sound_latency);
init_sound_table16();
sample_handler = sample16s_handler;
obtainedfreq = currprefs.sound_freq;
have_sound = 1;
sound_available = 1;
update_sound (fake_vblank_hz, 1, currprefs.ntscmode);
return sound_available;
}
static int init_joysticks (void) {
ppb_gamepad_interface = (PPB_Gamepad *)
NaCl_GetInterface(PPB_GAMEPAD_INTERFACE);
pp_instance = NaCl_GetInstance();
if (!ppb_gamepad_interface) {
DEBUG_LOG("Could not acquire PPB_Gamepad interface.\n");
return 0;
}
if (!pp_instance) {
DEBUG_LOG("Could not find current Pepper instance.\n");
return 0;
}
return 0;
}
static int32_t init_kb(void)
{
if (!ppb_input_event_interface) {
ppb_input_event_interface =
(PPB_InputEvent *) NaCl_GetInterface(PPB_INPUT_EVENT_INTERFACE);
}
ppb_keyboard_event_interface =
(PPB_KeyboardInputEvent *) NaCl_GetInterface(
PPB_KEYBOARD_INPUT_EVENT_INTERFACE);
if (!ppb_input_event_interface) {
DEBUG_LOG("Could not acquire PPB_InputEvent interface.\n");
return 0;
}
if (!ppb_keyboard_event_interface) {
DEBUG_LOG("Could not acquire PPB_KeyboardInputEvent interface.\n");
return 0;
}
inputdevice_release_all_keys ();
reset_hotkeys ();
return 1;
}
int32_t graphics_2d_subinit(uint32_t *Rmask, uint32_t *Gmask, uint32_t *Bmask,
uint32_t *Amask) {
/* Pepper Graphics2D setup. */
ppb_instance_interface = (PPB_Instance *)
NaCl_GetInterface(PPB_INSTANCE_INTERFACE);
if (!ppb_instance_interface) {
write_log("Could not acquire PPB_Instance interface.\n");
return 0;
}
ppb_g2d_interface = (PPB_Graphics2D *)
NaCl_GetInterface(PPB_GRAPHICS_2D_INTERFACE);
if (!ppb_g2d_interface) {
write_log("Could not acquire PPB_Graphics2D interface.\n");
return 0;
}
ppb_core_interface = (PPB_Core *) NaCl_GetInterface(PPB_CORE_INTERFACE);
if (!ppb_core_interface) {
write_log("Could not acquire PPB_Core interface.\n");
return 0;
}
ppb_image_data_interface = (PPB_ImageData *)
NaCl_GetInterface(PPB_IMAGEDATA_INTERFACE);
if (!ppb_image_data_interface) {
write_log("Could not acquire PPB_ImageData interface.\n");
return 0;
}
pp_instance = NaCl_GetInstance();
if (!pp_instance) {
write_log("Could not find current Pepper instance.\n");
return 0;
}
screenSize.width = canvasSize.width = gfxvidinfo.width;
screenSize.height = canvasSize.height = gfxvidinfo.height;
src_rect.point = origo;
src_rect.size = canvasSize;
graphics_context =
ppb_g2d_interface->Create(pp_instance,
&screenSize,
PP_TRUE /* is_always_opaque */);
if (!graphics_context) {
write_log("Could not obtain a PPB_Graphics2D context.\n");
return 0;
}
if (!ppb_instance_interface->BindGraphics(pp_instance, graphics_context)) {
write_log("Failed to bind context to instance.\n");
return 0;
}
preferredFormat = ppb_image_data_interface->GetNativeImageDataFormat();
switch (preferredFormat) {
case PP_IMAGEDATAFORMAT_BGRA_PREMUL:
*Rmask = 0x00FF0000, *Gmask = 0x0000FF00, *Bmask = 0x000000FF;
*Amask = 0xFF000000;
alpha_mask = *Amask;
break;
case PP_IMAGEDATAFORMAT_RGBA_PREMUL:
*Rmask = 0x000000FF, *Gmask = 0x0000FF00, *Bmask = 0x00FF0000;
*Amask = 0xFF000000;
alpha_mask = *Amask;
break;
default:
write_log("Unrecognized preferred image data format: %d.\n",
preferredFormat);
return 0;
}
image_data = ppb_image_data_interface->Create(pp_instance, preferredFormat,
&canvasSize, /* init_to_zero = */ PP_FALSE);
if (!image_data) {
write_log("Could not create image data.\n");
return 0;
}
/* UAE gfxvidinfo setup. */
gfxvidinfo.pixbytes = 4; /* 32-bit graphics */
gfxvidinfo.rowbytes = gfxvidinfo.width * gfxvidinfo.pixbytes;
gfxvidinfo.bufmem = (uint8_t *) ppb_image_data_interface->Map(image_data);
gfxvidinfo.emergmem = 0;
gfxvidinfo.flush_screen = pepper_graphics2d_flush_screen;
graphics_initialized = 1;
return 1;
}
int32_t graphics_3d_subinit(uint32_t *Rmask, uint32_t *Gmask, uint32_t *Bmask,
uint32_t *Amask) {
/* Pepper Graphics3D setup. */
PPB_Instance *ppb_instance_interface =
(PPB_Instance *) NaCl_GetInterface(PPB_INSTANCE_INTERFACE);
if (!ppb_instance_interface) {
write_log("Could not acquire PPB_Instance interface.\n");
return 0;
}
ppb_g3d_interface =
(PPB_Graphics3D *) NaCl_GetInterface(PPB_GRAPHICS_3D_INTERFACE);
if (!ppb_g3d_interface) {
write_log("Could not acquire PPB_Graphics3D interface.\n");
return 0;
}
pp_instance = NaCl_GetInstance();
if (!pp_instance) {
write_log("Could not find current Pepper instance.\n");
return 0;
}
int32_t attribs[] = {
PP_GRAPHICS3DATTRIB_ALPHA_SIZE, 8,
PP_GRAPHICS3DATTRIB_DEPTH_SIZE, 24,
PP_GRAPHICS3DATTRIB_STENCIL_SIZE, 8,
PP_GRAPHICS3DATTRIB_SAMPLES, 0,
PP_GRAPHICS3DATTRIB_SAMPLE_BUFFERS, 0,
PP_GRAPHICS3DATTRIB_WIDTH, gfxvidinfo.width,
PP_GRAPHICS3DATTRIB_HEIGHT, gfxvidinfo.height,
PP_GRAPHICS3DATTRIB_GPU_PREFERENCE,
PP_GRAPHICS3DATTRIB_GPU_PREFERENCE_PERFORMANCE,
PP_GRAPHICS3DATTRIB_NONE
};
graphics_context = ppb_g3d_interface->Create(
pp_instance,
0 /* share_context */,
attribs);
if (!graphics_context) {
write_log("Could not obtain a PPB_Graphics3D context.\n");
return 0;
}
if (!ppb_instance_interface->BindGraphics(pp_instance, graphics_context)) {
write_log("Failed to bind context to instance.\n");
return 0;
}
glSetCurrentContextPPAPI(graphics_context);
/* UAE gfxvidinfo setup. */
/* TODO(cstefansen): Implement gfx double-buffering if perf. mandates it. */
gfxvidinfo.pixbytes = 2; /* 16-bit graphics */
gfxvidinfo.rowbytes = gfxvidinfo.width * gfxvidinfo.pixbytes;
gfxvidinfo.bufmem =
(uint8_t *) calloc(round_up_to_power_of_2(gfxvidinfo.rowbytes),
round_up_to_power_of_2(gfxvidinfo.height));
gfxvidinfo.flush_screen = pepper_graphics3d_flush_screen;
*Rmask = 0x0000F800, *Gmask = 0x000007E0, *Bmask = 0x0000001F, *Amask = 0;
/* OpenGL ES setup. */
glViewport(0, 0, gfxvidinfo.width, gfxvidinfo.height);
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
glDisable(GL_DEPTH_TEST);
/* Uniform index. */
enum {
UNIFORM_VIDEOFRAME,
UNIFORM_INPUTCOLOR,
UNIFORM_THRESHOLD,
NUM_UNIFORMS
};
GLint uniforms[NUM_UNIFORMS];
/* Attribute index. */
enum {
ATTRIB_VERTEX,
ATTRIB_TEXTUREPOSITON,
NUM_ATTRIBUTES
};
static GLuint g_programObj;
static GLuint g_textureID;
char *g_VShaderData =
"attribute vec4 position;"
"attribute vec4 inputTextureCoordinate;"
"varying vec2 textureCoordinate;"
"void main()"
"{"
"gl_Position = position;"
"textureCoordinate = inputTextureCoordinate.xy;"
"}";
char *g_FShaderData =
"varying highp vec2 textureCoordinate;"
"uniform sampler2D videoFrame;"
"void main()"
"{"
"gl_FragColor = texture2D(videoFrame, textureCoordinate);"
"}";
GLuint g_vertexShader;
GLuint g_fragmentShader;
g_vertexShader = compileShader(GL_VERTEX_SHADER, g_VShaderData);
g_fragmentShader = compileShader(GL_FRAGMENT_SHADER, g_FShaderData);
g_programObj = glCreateProgram();
glAttachShader(g_programObj, g_vertexShader);
glAttachShader(g_programObj, g_fragmentShader);
glBindAttribLocation(g_programObj, ATTRIB_VERTEX, "position");
glBindAttribLocation(g_programObj, ATTRIB_TEXTUREPOSITON,
"inputTextureCoordinate");
glLinkProgram(g_programObj);
uniforms[UNIFORM_VIDEOFRAME] = glGetUniformLocation(g_programObj,
"videoFrame");
uniforms[UNIFORM_INPUTCOLOR] = glGetUniformLocation(g_programObj,
"inputColor");
uniforms[UNIFORM_THRESHOLD] = glGetUniformLocation(g_programObj,
"threshold");
glGenTextures(1, &g_textureID);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, g_textureID);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
GLint textureWidth = round_up_to_power_of_2(gfxvidinfo.width);
GLint textureHeight = round_up_to_power_of_2(gfxvidinfo.height);
glTexImage2D(GL_TEXTURE_2D, 0 /* level */, GL_RGB,
textureWidth, textureHeight,
0, GL_RGB, pixel_data_type, gfxvidinfo.bufmem);
static const GLfloat squareVertices[] = {
-1.0f, -1.0,
1.0f, -1.0,
-1.0f, 1.0,
1.0f, 1.0,
};
GLfloat xFraction = ((GLfloat) gfxvidinfo.width) / (GLfloat) textureWidth;
GLfloat yFraction = ((GLfloat) gfxvidinfo.height) / (GLfloat) textureHeight;
static GLfloat textureVertices[] = {
0.0f, 0.0f /* yFraction */,
0.0f /* xFraction */, 0.0f /* yFraction */,
0.0f, 0.0f,
0.0f /* xFraction */, 0.0f,
};
textureVertices[1] = yFraction;
textureVertices[2] = xFraction;
textureVertices[3] = yFraction;
textureVertices[6] = xFraction;
glUseProgram(g_programObj);
glUniform1i(uniforms[UNIFORM_VIDEOFRAME], 0);
glVertexAttribPointer(ATTRIB_VERTEX, 2, GL_FLOAT, 0, 0, squareVertices);
glEnableVertexAttribArray(ATTRIB_VERTEX);
glVertexAttribPointer(ATTRIB_TEXTUREPOSITON, 2, GL_FLOAT, 0, 0,
textureVertices);
glEnableVertexAttribArray(ATTRIB_TEXTUREPOSITON);
DEBUG_LOG("Shaders compiled and program linked.\n");
GLenum glErrorStatus = glGetError();
if (glErrorStatus) {
write_log("GL error %d while initializing.\n", glErrorStatus);
return 0;
}
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
ppb_g3d_interface->SwapBuffers(graphics_context, PP_BlockUntilComplete());
gettimeofday(&tv_prev, NULL);
return 1; /* Success! */
}