Rev 4517 | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
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4502 | Serge | 1 | #include |
2 | #include |
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3 | #include |
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4 | |||
5 | #include "render.h" |
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6 | #include |
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7 | |||
8 | void render_blit(struct render *render, enum px_buffer buffer) |
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9 | { |
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10 | char proc_info[1024]; |
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11 | |||
12 | EGLContext context; |
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13 | EGLSurface draw, read; |
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14 | int winx, winy; |
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15 | |||
16 | float dst_xscale, dst_yscale; |
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17 | float *vertices = render->vertices; |
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4523 | Serge | 18 | float *texcoords = render->tc_src; |
4502 | Serge | 19 | int r, b; |
20 | |||
21 | if(render == NULL) |
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22 | return; |
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23 | |||
24 | get_proc_info(proc_info); |
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25 | |||
26 | winx = *(uint32_t*)(proc_info+34); |
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27 | winy = *(uint32_t*)(proc_info+38); |
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28 | |||
29 | context = eglGetCurrentContext(); |
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30 | draw = eglGetCurrentSurface(EGL_DRAW); |
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31 | read = eglGetCurrentSurface(EGL_READ); |
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32 | |||
33 | if (!eglMakeCurrent(render->dpy, EGL_NO_SURFACE, EGL_NO_SURFACE, render->context)) |
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34 | { |
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35 | printf("failed to make window current"); |
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36 | goto err1; |
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37 | }; |
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38 | |||
39 | glUseProgram(render->blit_prog); |
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40 | glUniform1i(render->sampler, 0); |
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41 | |||
42 | glVertexAttribPointer(0, 2, GL_FLOAT,GL_FALSE, 2 * sizeof(float),render->vertices); |
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43 | glEnableVertexAttribArray(0); |
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44 | |||
45 | glActiveTexture(GL_TEXTURE0); |
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46 | glBindTexture(GL_TEXTURE_2D, render->tx_buffers[buffer]); |
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47 | glTexParameteri(GL_TEXTURE_2D, |
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48 | GL_TEXTURE_MIN_FILTER, |
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49 | GL_NEAREST); |
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50 | glTexParameteri(GL_TEXTURE_2D, |
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51 | GL_TEXTURE_MAG_FILTER, |
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52 | GL_NEAREST); |
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53 | |||
4523 | Serge | 54 | glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 2 * sizeof(float),render->tc_src); |
4502 | Serge | 55 | glEnableVertexAttribArray(1); |
56 | |||
57 | dst_xscale = 1.0/render->scr_width; |
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58 | dst_yscale = 1.0/render->scr_height; |
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59 | |||
4517 | Serge | 60 | r = winx + render->dx + render->width; |
4502 | Serge | 61 | b = winy + render->dy + render->height; |
62 | |||
63 | float t0, t1, t2, t5; |
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64 | |||
65 | vertices[0] = t0 = 2*(winx+render->dx)*dst_xscale - 1.0; |
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66 | vertices[1 * 2] = t2 = 2*r*dst_xscale - 1.0; |
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67 | |||
68 | vertices[2 * 2] = t2; |
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69 | vertices[3 * 2] = t0; |
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70 | |||
71 | vertices[1] = t1 = 2*(winy+render->dy)*dst_yscale - 1.0; |
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72 | vertices[2*2+1] = t5 = 2*b*dst_yscale - 1.0; |
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73 | vertices[1*2+1] = t1; |
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74 | vertices[3*2+1] = t5; |
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75 | |||
76 | texcoords[0] = 0.0; |
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77 | texcoords[1] = 0.0; |
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78 | texcoords[1*2] = 1.0; |
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79 | texcoords[1*2+1]= 0.0; |
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80 | texcoords[2*2] = 1.0; |
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81 | texcoords[2*2+1]= 1.0; |
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82 | texcoords[3*2] = 0.0; |
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83 | texcoords[3*2+1]= 1.0; |
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84 | |||
85 | glDrawArrays(GL_TRIANGLE_FAN, 0, 4); |
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86 | |||
87 | glDisableVertexAttribArray(0); |
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88 | glDisableVertexAttribArray(1); |
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89 | glDisable(GL_TEXTURE_2D); |
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90 | glUseProgram(0); |
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91 | |||
92 | err1: |
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93 | eglMakeCurrent(render->dpy, draw, read, context); |
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94 | } |
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95 |