target/mips: Move MUL opcode check from decode_mxu() to decode_legacy()
[qemu/ar7.git] / ui / console-gl.c
blob0a6478161fed60910838890ada258f8951196536
1 /*
2  * QEMU graphical console -- opengl helper bits
3  *
4  * Copyright (c) 2014 Red Hat
5  *
6  * Authors:
7  *    Gerd Hoffmann <kraxel@redhat.com>
8  *
9  * Permission is hereby granted, free of charge, to any person obtaining a copy
10  * of this software and associated documentation files (the "Software"), to deal
11  * in the Software without restriction, including without limitation the rights
12  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
13  * copies of the Software, and to permit persons to whom the Software is
14  * furnished to do so, subject to the following conditions:
15  *
16  * The above copyright notice and this permission notice shall be included in
17  * all copies or substantial portions of the Software.
18  *
19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
22  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
23  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
24  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
25  * THE SOFTWARE.
26  */
27 #include "qemu/osdep.h"
28 #include "ui/console.h"
29 #include "ui/shader.h"
31 /* ---------------------------------------------------------------------- */
33 bool console_gl_check_format(DisplayChangeListener *dcl,
34                              pixman_format_code_t format)
36     switch (format) {
37     case PIXMAN_BE_b8g8r8x8:
38     case PIXMAN_BE_b8g8r8a8:
39     case PIXMAN_r5g6b5:
40         return true;
41     default:
42         return false;
43     }
46 void surface_gl_create_texture(QemuGLShader *gls,
47                                DisplaySurface *surface)
49     assert(gls);
50     assert(QEMU_IS_ALIGNED(surface_stride(surface), surface_bytes_per_pixel(surface)));
52     switch (surface->format) {
53     case PIXMAN_BE_b8g8r8x8:
54     case PIXMAN_BE_b8g8r8a8:
55         surface->glformat = GL_BGRA_EXT;
56         surface->gltype = GL_UNSIGNED_BYTE;
57         break;
58     case PIXMAN_BE_x8r8g8b8:
59     case PIXMAN_BE_a8r8g8b8:
60         surface->glformat = GL_RGBA;
61         surface->gltype = GL_UNSIGNED_BYTE;
62         break;
63     case PIXMAN_r5g6b5:
64         surface->glformat = GL_RGB;
65         surface->gltype = GL_UNSIGNED_SHORT_5_6_5;
66         break;
67     default:
68         g_assert_not_reached();
69     }
71     glGenTextures(1, &surface->texture);
72     glEnable(GL_TEXTURE_2D);
73     glBindTexture(GL_TEXTURE_2D, surface->texture);
74     glPixelStorei(GL_UNPACK_ROW_LENGTH_EXT,
75                   surface_stride(surface) / surface_bytes_per_pixel(surface));
76     glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB,
77                  surface_width(surface),
78                  surface_height(surface),
79                  0, surface->glformat, surface->gltype,
80                  surface_data(surface));
82     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
83     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
86 void surface_gl_update_texture(QemuGLShader *gls,
87                                DisplaySurface *surface,
88                                int x, int y, int w, int h)
90     uint8_t *data = (void *)surface_data(surface);
92     assert(gls);
94     if (surface->texture) {
95         glBindTexture(GL_TEXTURE_2D, surface->texture);
96         glPixelStorei(GL_UNPACK_ROW_LENGTH_EXT,
97                       surface_stride(surface)
98                       / surface_bytes_per_pixel(surface));
99         glTexSubImage2D(GL_TEXTURE_2D, 0,
100                         x, y, w, h,
101                         surface->glformat, surface->gltype,
102                         data + surface_stride(surface) * y
103                         + surface_bytes_per_pixel(surface) * x);
104     }
107 void surface_gl_render_texture(QemuGLShader *gls,
108                                DisplaySurface *surface)
110     assert(gls);
112     glClearColor(0.1f, 0.1f, 0.1f, 0.0f);
113     glClear(GL_COLOR_BUFFER_BIT);
115     qemu_gl_run_texture_blit(gls, false);
118 void surface_gl_destroy_texture(QemuGLShader *gls,
119                                 DisplaySurface *surface)
121     if (!surface || !surface->texture) {
122         return;
123     }
124     glDeleteTextures(1, &surface->texture);
125     surface->texture = 0;
128 void surface_gl_setup_viewport(QemuGLShader *gls,
129                                DisplaySurface *surface,
130                                int ww, int wh)
132     int gw, gh, stripe;
133     float sw, sh;
135     assert(gls);
137     gw = surface_width(surface);
138     gh = surface_height(surface);
140     sw = (float)ww/gw;
141     sh = (float)wh/gh;
142     if (sw < sh) {
143         stripe = wh - wh*sw/sh;
144         glViewport(0, stripe / 2, ww, wh - stripe);
145     } else {
146         stripe = ww - ww*sh/sw;
147         glViewport(stripe / 2, 0, ww - stripe, wh);
148     }